On Newton–Cotes Formula-Type Inequalities for Multiplicative Generalized Convex Functions via Riemann–Liouville Fractional Integrals with Applications to Quadrature Formulas and Computational Analysis

Abstract

In this article, we develop multiplicative fractional versions of Simpson’s and Newton’s formula-type inequalities for differentiable generalized convex functions with the help of established identities. The main motivation for using generalized convex functions lies in their ability to extend results beyond traditional convex functions, encompassing a broader class of functions, and providing optimal approximations for both lower and upper bounds. These inequalities are very useful in finding the error bounds for the numerical integration formulas in multiplicative calculus. Applying these results to the Quadrature formulas demonstrates their practical utility in numerical integration. Furthermore, numerical analysis provides empirical evidence of the effectiveness of the derived findings. It is also demonstrated that the newly proven inequalities extend certain existing results in the literature.

1. Introduction

Convexity is a basic notion in mathematics, notably in mathematical analysis, calculus, and optimization. The origins of convexity can be traced back to ancient civilizations, where early geometric concepts were first explored. Notably, mathematicians like Euclid (300 BC) delved into the properties of convex shapes such as circles and triangles. However, the formalization of convex functions emerged much later. The study of convex functions began to take shape during subsequent periods, with notable contributions from mathematicians such as Leonhard Euler (1707–1783) and Johann Radon (1887–1956). Euler, in particular, investigated the properties of convex curves. Mathematically, a convex function is defined as follows:

$$\Omega (\varsigma {\omega }_1+(1-\varsigma ){\omega }_2)\le \varsigma \Omega \left({\omega }_1\right)+(1-\varsigma )\Omega \left({\omega }_2\right),\forall \varsigma \in \left[0,1\right].$$

(1)

The systematic exploration of convex functions gained momentum as the field of convex analysis developed. Mathematicians such as Hermann Minkowski (1864–1909) and Constantin Carathéodory (1873–1950) laid the foundational groundwork in convex geometry and optimization theory. Today, convex optimization is a fundamental component of applied mathematics, with applications across diverse fields including engineering, economics, computer science, and machine learning. For more details about the history of convexity, one can visit [1,2]. Numerous researchers have been exploring the inequalities related to convexity from various perspectives; see [3,4,5] and the references listed therein. Hermite–Hadamard Inequalities (HHIs) represent one of the most significant mathematical inequalities involving convex mappings. For convex functions, HHI is stated as follows:

$$\Omega \left({\displaystyle \frac{{\omega }_1+{\omega }_2}{2}}\right)\le {\displaystyle \frac{1}{{\omega }_2-{\omega }_1}}{\int }_{{\omega }_1}^{{\omega }_2}\Omega \left(\varsigma \right)d\varsigma \le {\displaystyle \frac{\Omega \left({\omega }_1\right)+\Omega \left({\omega }_2\right)}{2}}.$$

(2)

The inequalities (2) are reversed when a function is concave. The interested reader can visit [6,7,8,9,10,11] for more detials about inequality (2).

In [12], Breckner was the first mathematician to introduce a generalized convex function in 1979. Pycia was the first mathematician to verify Breckner’s results in 2001 [13]. The s-convexity enables a more precise examination of the function’s behavior, accelerating the search for optimum solutions. The s-convexity in the second sense is negotiated in [14]. The s-convexity is used in a variety of domains, including machine learning, optimization theory, and finance. We also observe in the main section that the results obtained by s-convexity are much better than those obtained by convexity. Secondly, s-convexity is the generalization of a convex function, so we can obtain the results for convex functions by using $s=1$ in the results of s-convex functions. A function is said to be s-convex if the following conditions hold:

$$\Omega (\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2)\le {\varsigma }^s\Omega \left({\omega }_1\right)+{\left(1-\varsigma \right)}^s\Omega \left({\omega }_2\right),\forall {\omega }_1,{\omega }_2\in \left[0,\infty \right),\varsigma \in \left[0,1\right],$$

(3)

with $s\in \left(0,1\right]$. When $s=1$, the aforementioned inequality (3), defined on $[0,\infty )$, reduces s-convexity to ordinary convexity. Dragomir et al. [15] presented Hermite–Hadamard’s type inequalities (HHIs) for s-convex functions in the second sense as follows:

$$2^{s-1}\Omega \left({\displaystyle \frac{{\omega }_1+{\omega }_2}{2}}\right)\le {\displaystyle \frac{1}{{\omega }_2-{\omega }_1}}{\int }_{{\omega }_1}^{{\omega }_2}\Omega \left(\varsigma \right)d\varsigma \le {\displaystyle \frac{\Omega \left({\omega }_1\right)+\Omega \left({\omega }_2\right)}{s+1}}.$$

(4)

The Simpson-type inequality is defined as follows:

Theorem 1. 

Consider a function Ω defined on the interval $\left[{\omega }_1,{\omega }_2\right]\subset \mathbb{R}$. If Ω is four times continuously differentiable on $\left({\omega }_1,{\omega }_2\right)$, then

$$\left|{\displaystyle \frac{1}{6}}\left(\Omega \left({\omega }_1\right)+4\Omega \left({\displaystyle \frac{{\omega }_1+{\omega }_2}{2}}\right)+\Omega \left({\omega }_2\right)\right)-{\displaystyle \frac{1}{{\omega }_2-{\omega }_1}}{\int }_{{\omega }_1}^{{\omega }_2}\Omega \left(\varsigma \right)d\varsigma \right|\le {\displaystyle \frac{{\left({\omega }_2-{\omega }_1\right)}^4}{2880}}{\left|\left|{\Omega }^{\left(4\right)}\right|\right|}_{\infty },$$

(5)

where ${\left|\left|{\Omega }^{\left(4\right)}\right|\right|}_{\infty }={sup}_{\varsigma \in \left[{\omega }_1,{\omega }_2\right]}\left|{\Omega }^{\left(4\right)}\left(\varsigma \right)\right|<\infty$.

This inequality provides an error bound for Simpson’s rule by comparing the actual integral of $\Omega$ over $\left[{\omega }_1,{\omega }_2\right]$ to the Simpson’s rule approximation. Readers can find some recent interesting findings regarding inequality (5) in [16,17].

Grossman and Katz introduced non-Newtonian calculus between 1967 and 1970 by modifying the classical calculus of Leibniz and Newton. For more details on its concepts, see [18]. Bashirov et al. [19] fully described the ideas of multiplicative calculus appended to exponential functions, multiplicative derivative, and integral. Though less widespread than traditional calculus, it can be especially useful in fields like economics and finance. Multiplicative calculus is particularly useful for modeling systems that involve complex growth or decay. Unlike traditional calculus, which often relies on simple, linear approximations, multiplicative calculus uses nonlinear approximations, allowing it to capture more intricate interactions within nonlinear systems. This makes it especially valuable in fields like finance and economics, where both positive and negative numbers are frequently involved. The key advantages of multiplicative calculus are its ability to model complex growth patterns, handle both positive and negative numbers, and accurately represent exponential changes.

Initially, a multiplicative version of HHI was proved by Ali et al. [20], which is as follows:

Theorem 2 

([20]). For a positive and multiplicative convex function on interval $\left[{\omega }_1,{\omega }_2\right]$, the following inequalities hold:

$$\Omega \left({\displaystyle \frac{{\omega }_1+{\omega }_2}{2}}\right)\le {\left({\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varsigma \right)\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{1}{{\omega }_2-{\omega }_1}}}\le \sqrt{\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right)}.$$

After the seminal work by Ali et al. [20], researchers have extensively explored integral inequalities through multiplicative calculus. Ali et al. [21] derived bounds for Simpson’s and Ostrowski’s type inequalities for multiplicative integrals. Zhan et al. [22] extended these results to generalized convex functions and provided computational analyses to validate their findings. Chasreechai et al. [23] established Simpson’s and Newton’s type inequalities in the context of multiplicative calculus. Ali [24] investigated the fractional version of Simpson’s and Newton’s type inequalities. Bai and Qi [25] explored HHI for multiplicative convex functions. Budak et al. [26] presented multiplicative fractional HHI. Fu et al. [27] addressed integral inequalities involving multiplicative tempered fractional integrals. Chen and X. Huang [28] established Simpson’s type inequalities for s-convex functions via fractional integrals. Dragomir [29] discussed Hermite–Hadamard type inequalities associated with multiplicative convex functions. Khan and Budak [30] investigated midpoint and trapezoidal type inequalities for multiplicative integrals. For further details, references, and comprehensive reviews, readers can see [31,32,33,34].

Motivated by ongoing research, this work developed a fractional version of Simpson’s and Newton’s type inequalities using a multiplicatively generalized convexity of functions. These inequalities allow us to estimate error bounds for Simpson’s and Newton’s formulas in multiplicative calculus without relying on higher derivatives, which may be non-existent or difficult to determine. The s-convexity offers a broader range of bounds compared to convex functions, enhancing the robustness and effectiveness of these integral inequalities. We present numerical examples and computational analysis to validate these new inequalities and demonstrate their applicability to quadrature in multiplicative calculus. Multiplicative calculus is also a modern calculus with extensive applications in banking and finance, underscoring its study’s importance.

The structure of the article is outlined as follows. An overview of multiplicative convex functions is given in Section 2. Section 3 introduces our primary findings on multiplicative fractional Simpson- and Newton-type integral inequalities for s-convex functions in the second sense. Section 4 includes numerical examples and analysis to validate our results. Section 5 discusses applications to quadrature formulas. Finally, the concluding remarks and proposed future research directions are presented in Section 6.

2. Preliminary Concepts

In this section, we revisit some key concepts of multiplicative calculus and discuss certain inequalities. It is important to note that multiplicative calculus specifically focuses on positive functions. This means it deals exclusively with functions where all values are greater than zero, excluding negative values. One of the most important concepts is the multiplicative convex function, which may be defined as follows.

Definition 1 

([35]). A function $\Omega :I\subseteq \mathbb{R}\to \left[0,\infty \right)$ is said to be multiplicative convex if the following condition holds:

$$\Omega \left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\le {\left[\Omega \left({\omega }_1\right)\right]}^{\varsigma }{\left[\Omega \left({\omega }_2\right)\right]}^{1-\varsigma },\mathit{for} \mathit{all}{\omega }_1,{\omega }_2\in I \mathit{and}\varsigma \in \left[0,1\right].$$

Based on Definition 1, we can conclude that

$$\Omega \left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\le {\left[\Omega \left({\omega }_1\right)\right]}^{\varsigma }{\left[\Omega \left({\omega }_2\right)\right]}^{1-\varsigma }\le \varsigma \Omega \left({\omega }_1\right)+\left(1-\varsigma \right)\Omega \left({\omega }_2\right).$$

Definition 2 

([36]). A function $\Omega :I\subseteq \mathbb{R}\to \left[0,\infty \right)$ is said to be multiplicative s-convex in the second sense if the following condition holds:

$$\Omega \left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\le {\left[\Omega \left({\omega }_1\right)\right]}^{{\varsigma }^s}{\left[\Omega \left({\omega }_2\right)\right]}^{{\left(1-\varsigma \right)}^s},\mathit{for}\mathit{all}{\omega }_1,{\omega }_2\in I\mathit{and}\varsigma \in \left[0,1\right].$$

Remark 1. 

When $s=1$, Definition 2 simplifies to Definition 1.

In 2008 [37], Bashirov gave the new concept of multiplicative operators termed *integral, denoted by ${\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varsigma \right)\right)}^{d\varsigma }$. The usual integral is represented as ${\int }_{{\omega }_1}^{{\omega }_2}\Omega \left(\varsigma \right)d\varsigma$. The function $\Omega$ is multiplicative integrable on $\left[{\omega }_1,{\omega }_2\right]$, if $\Omega$ is positive and Riemann integrable on $\left[{\omega }_1,{\omega }_2\right]$ and

$${\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varkappa \right)\right)}^{d\varkappa }=e^{{\int }_{{\omega }_1}^{{\omega }_2}\ln \left(\Omega \left(\varsigma \right)\right)d\varsigma }.$$

Definition 3 

([37]). The multiplicative derivative of a positive function Ω is as follows:

$${\displaystyle \frac{d^{*}\Omega }{d\varsigma }}\left(\varsigma \right)={\Omega }^{*}\left(\varsigma \right)=\underset{h\to 0}{lim}{\left({\displaystyle \frac{\Omega \left(\varsigma +h\right)}{\Omega \left(h\right)}}\right)}^{{\displaystyle \frac{1}{h}}}.$$

If Ω has positive values and is differentiable at ς, then ${\Omega }^{*}$ exists, where ${\Omega }^{*}$ relates to the usual derivative ${\Omega }^{\prime }$, which is as follows:

$${\Omega }^{*}\left(\varsigma \right)=e^{{\left[\ln \Omega \left(\varsigma \right)\right]}^{\prime }}=e^{{\displaystyle \frac{{\Omega }^{\prime }\left(\varsigma \right)}{\Omega \left(\varsigma \right)}}}.$$

Definition 4. 

The multiplicative second derivative of a positive function Ω is as follows:

$${\Omega }^{**}\left(\varsigma \right)=e^{{\left[\ln {\Omega }^{*}\left(\varsigma \right)\right]}^{\prime }}=e^{{\left[\ln \Omega \left(\varsigma \right)\right]}^{″}}.$$

Here, ${\left(\ln \Omega \right)}^{″}\left(\varsigma \right)$ exists because ${\Omega }^{″}\left(\varsigma \right)$ exists. If we iterate this procedure n-times, we affirm that if $\Omega$ is a positive function and its derivative of nth order exists at $\varsigma$, then ${\Omega }^{*n}\left(\varsigma \right)$ exists:

$${\Omega }^{*n}\left(\varsigma \right)=e^{{\left(\ln \Omega \right)}^n\left(\varsigma \right)},n=1,2,3,\dots .$$

Lemma 1 

([37]). Suppose $\Omega :\left[{\omega }_1,{\omega }_2\right]\to \mathbb{R}$ is multiplicative differentiable and suppose $\Psi :\left[{\omega }_1,{\omega }_2\right]\to \mathbb{R}$ is differentiable so the function ${\Omega }^{\Psi }$ is multiplicative integrable, then

$${\int }_{{\omega }_1}^{{\omega }_2}{\left({\left({\Omega }^{*}\left(\varpi \right)\right)}^{\Psi \left(\varpi \right)}\right)}^{d\varpi }={\displaystyle \frac{\Omega {\left({\omega }_2\right)}^{\Psi \left({\omega }_2\right)}}{\Omega {\left({\omega }_1\right)}^{\Psi \left({\omega }_1\right)}}}.{\displaystyle \frac{1}{{\int }_{{\omega }_1}^{{\omega }_2}{\left({\left(\Omega \left(\varpi \right)\right)}^{{\Psi }^{\prime }\left(\varpi \right)}\right)}^{d\varpi }}}.$$

Definition 5 

([38,39]). For $\Omega \in L_1\left[{\omega }_1,{\omega }_2\right]$, the Riemann–Liouville integrals $J_{{\omega }_1^{+}}^{\alpha }\Omega$ and $J_{{\omega }_2^{-}}^{\alpha }\Omega$ of order $\alpha >0$ with ${\omega }_1\ge 0$ are defined as follows:

$$J_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right)={\displaystyle \frac{1}{\Gamma \left(\alpha \right)}}{\int }_{{\omega }_1}^{\varpi }{\left(\varpi -\varsigma \right)}^{\alpha -1}\Omega \left(\varsigma \right)d\varsigma ,\varpi >{\omega }_1,$$

and

$$J_{{\omega }_2^{-}}^{\alpha }\Omega \left(\varpi \right)={\displaystyle \frac{1}{\Gamma \left(\alpha \right)}}{\int }_{\varpi }^{{\omega }_2}{\left(\varsigma -\varpi \right)}^{\alpha -1}\Omega \left(\varsigma \right)d\varsigma ,\varpi <{\omega }_2,$$

respectively [38,39]. Here, $\Gamma \left(\alpha \right)$ denotes the well-known Gamma function. By setting $\alpha =1$, then Definition 5 reduces to the classical integral.

In [40], Abdeljawed and Grossman presented the following multiplicative Riemann–Liouville fractional integrals.

Definition 6 

([40]). The multiplicative Riemann–Liouville fractional integrals ${}_{{\omega }_{1^{+}}}I_{*}^{\alpha }\Omega$ (left) and ${}_{*}I_{{\omega }_{2^{-}}}^{\alpha }\Omega$ (right) of order $\alpha \in \mathbb{C},$$\mathbb{R}e\left(\alpha \right)>0$ with ${\omega }_1\ge 0$ are defined as follows:

$${}_{{\omega }_{1^{+}}}I_{*}^{\alpha }\Omega \left(\varpi \right)=e^{\left(J_{{\omega }_1^{+}}^{\alpha }\left(\ln \circ \Omega \right)\right)\left(\varpi \right)},$$

$${}_{*}I_{{\omega }_{2^{-}}}^{\alpha }\Omega \left(\varpi \right)=e^{\left(J_{{\omega }_2^{-}}^{\alpha }\left(\ln \circ \Omega \right)\right)\left(\varpi \right)}.$$

Definition 7 

([40]). The multiplicative Riemann–Liouville fractional derivatives ${}_{{\omega }_{1^{+}}}D_{*}^{\alpha }\Omega$ (left) and ${}_{*}D_{{\omega }_{2^{-}}}^{\alpha }\Omega$ (right) of order $\alpha \in \mathbb{C},$$\mathbb{R}e\left(\alpha \right)>0$ with ${\omega }_1\ge 0$ are defined as follows:

$${}_{{\omega }_{1^{+}}}D_{*}^{\alpha }\Omega \left(\varpi \right)=e^{\left(D_{a^{+}}^{\alpha }\left(\ln \circ \Omega \right)\right)\left(\varpi \right)},$$

$$\left({}_{*}D_{{\omega }_{2^{-}}}^{\alpha }\Omega \right)\left(\varpi \right)=e^{\left(D_{{\omega }_{2^{-}}^{-}}^{\alpha }\left(\ln \circ \Omega \right)\right)\left(\varpi \right)}.$$

One can consult [40] for more details about the multiplicative fractional calculus. The fractional version of the Hermite–Hadamard type inequalities (HHIs) was presented by Sarikaya et al. in 2013, stated as follows:

Theorem 3 

([41]). Let $\Omega :[{\omega }_1,{\omega }_2]\subset \mathbb{R}\to \mathbb{R}$ be a positive function with $\Omega \in L_1\left[{\omega }_1,{\omega }_2\right]$ and $0\le {\omega }_1<{\omega }_2$, then the following double inequalities hold:

$$\Omega \left({\displaystyle \frac{{\omega }_1+{\omega }_2}{2}}\right)\le {\displaystyle \frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}\left[J_{{\omega }_1^{+}}^{\alpha }\Omega \left({\omega }_2\right)+J_{{\omega }_2^{-}}^{\alpha }\Omega \left({\omega }_1\right)\right]\le {\displaystyle \frac{\Omega \left({\omega }_1\right)+\Omega \left({\omega }_2\right)}{2}}.$$

Theorem 4 

([26]). Let $\Omega :[{\omega }_1,{\omega }_2]\subset \mathbb{R}\to \mathbb{R}$ be a positive function with $\Omega \in L_1\left[{\omega }_1,{\omega }_2\right]$ and $0\le {\omega }_1<{\omega }_2$, then following double inequalities holds for multiplicative Riemann-Liouville fractional (RLF) integrals:

$$\Omega \left({\displaystyle \frac{{\omega }_1+{\omega }_2}{2}}\right)\le {\displaystyle \frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}\left[{}_{{\omega }_{1^{+}}}I_{*}^{\alpha }\Omega \left({\omega }_2\right).{}_{*}I_{{\omega }_{2^{-}}}^{\alpha }\Omega {\omega }_1\right]\le \sqrt{\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right)}.$$

3. Main Results

In this section, we establish the multiplicative versions of Simpson’s and Newton’s type inequalities using fractional integrals for multiplicative generalized convex functions. To derive our main inequalities, we rely on the succeeding lemmas:

Lemma 2. 

Let $\Omega :[{\omega }_1,{\omega }_2]\subset \mathbb{R}\to {\mathbb{R}}^{+}$ be a multiplicative differentiable function on $\left({\omega }_1,{\omega }_2\right)$, with ${\omega }_1<{\omega }_2$. If ${\Omega }^{*}$ is a function integrable in the multiplicative sense, then the following identity holds:

$$\begin{array}{cc}\hfill & {\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left(\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right)}^4\right]}^{\frac{1}{6}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\hfill \\ \hfill & ={\left({\int }_0^{{\displaystyle \frac{1}{2}}}{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right]}^{\left({\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}\times {\left({\int }_0^{{\displaystyle \frac{1}{2}}}{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right]}^{\left({\displaystyle \frac{1}{6}}-{\varsigma }^{\alpha }\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}\hfill \\ \hfill & \times {\left({\int }_{{\displaystyle \frac{1}{2}}}^1{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right]}^{\left({\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}\times {\left({\int }_{{\displaystyle \frac{1}{2}}}^1{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right]}^{\left({\displaystyle \frac{5}{6}}-{\varsigma }^{\alpha }\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}.\hfill \end{array}$$

(6)

Lemma 3. 

Let $\Omega :[{\omega }_1,{\omega }_2]\subset \mathbb{R}\to {\mathbb{R}}^{+}$ be a multiplicative differentiable function on $\left({\omega }_1,{\omega }_2\right)$, with ${\omega }_1<{\omega }_2$. If ${\Omega }^{*}$ is a function integrable in the multiplicative sense, then the following identity holds:

$$\begin{array}{cc}\hfill & {\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\hfill \\ \hfill & ={\left({\int }_0^{{\displaystyle \frac{1}{3}}}{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right]}^{\left({\varsigma }^{\alpha }-{\displaystyle \frac{1}{8}}\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}\times {\left({\int }_0^{{\displaystyle \frac{1}{3}}}{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right]}^{\left({\displaystyle \frac{1}{8}}-{\varsigma }^{\alpha }\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}\hfill \\ \hfill & \times {\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right]}^{\left({\varsigma }^{\alpha }-{\displaystyle \frac{1}{2}}\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}\times {\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right]}^{\left({\displaystyle \frac{1}{2}}-{\varsigma }^{\alpha }\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}\hfill \\ \hfill & \times {\left({\int }_{{\displaystyle \frac{2}{3}}}^1{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right]}^{\left({\varsigma }^{\alpha }-{\displaystyle \frac{7}{8}}\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}\times {\left({\int }_{{\displaystyle \frac{2}{3}}}^1{\left({\left[{\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right]}^{\left({\displaystyle \frac{7}{8}}-{\varsigma }^{\alpha }\right)}\right)}^{d\varsigma }\right)}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}}.\hfill \end{array}$$

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3.1. Multiplicative Fractional Simpson’s Type Inequalities

In this part, we proved Simpson’s type inequalities for multiplicative generalized convex functions via Reimann–Liouville fractional integrals by using Lemma 2.

Theorem 5. 

Assuming that the conditions outlined in Lemma 2 hold, if ${\Omega }^{*}$ is a multiplicative s-covex function in the second sense on $\left[{\omega }_1,{\omega }_2\right],$ for some fixed $s\in \left(0,1\right]$, then the following Simpson’s type inequality holds:

$$\begin{array}{cc}\hfill & \left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left[\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right]}^4\right]}^{\frac{1}{6}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\hfill \\ \hfill & \le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)\left({\Xi }_1\left(\alpha ,s\right)+{\Xi }_2\left(\alpha ,s\right)+{\Xi }_3\left(\alpha ,s\right)+{\Xi }_4\left(\alpha ,s\right)\right)}{2}}},\hfill \end{array}$$

(8)

where

$$\begin{array}{ccc}\hfill {\Xi }_1\left(\alpha ,s\right)& =& \left\{\begin{array}{c}{\displaystyle \frac{2^{-\frac{(\alpha +1)(\alpha +s+1)}{\alpha }}{3}^{-\frac{\alpha +s+1}{\alpha }}\left(\alpha 2^{\alpha +s+2}+6^{\frac{s+1}{\alpha }}\left(6(s+1)-2^{\alpha }(\alpha +s+1)\right)\right)}{(s+1)(\alpha +s+1)}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\\ {\displaystyle \frac{1}{3}}{2}^{-s-2}\left({\displaystyle \frac{32^{1-\alpha }}{\alpha +s+1}}-{\displaystyle \frac{1}{s+1}}\right),\alpha >{\displaystyle \frac{\ln \left(\frac{1}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\end{array}\right.\hfill \\ \hfill {\Xi }_2\left(\alpha ,s\right)& =& \left\{\begin{array}{c}-{\displaystyle \frac{1}{6(s+1)}}\times {\left(1-6^{-1/\alpha }\right)}^s+\left(6^{1/\alpha }-2\right)6^{-{\displaystyle \frac{s+1}{\alpha }}}{\left(6^{1/\alpha }-1\right)}^s-6(s+1)B_{{\displaystyle \frac{1}{2}}}(\alpha +1,s+1)\\ +{\left(6^{-1/\alpha }\right)}^{-\alpha }\left(6{\left(6^{-1/\alpha }\right)}^{\alpha }+1\right)(s+1)B_{6^{-1/\alpha }}(\alpha +1,s+1)-2^{-s-1}-1,0<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\\ B_{{\displaystyle \frac{1}{2}}}(\alpha +1,s+1)-{\displaystyle \frac{2-2^{-s}}{12(s+1)}},\alpha >{\displaystyle \frac{\ln \left(\frac{1}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\end{array}\right.\hfill \\ \hfill {\Xi }_3\left(\alpha ,s\right)& =& \left\{\begin{array}{c}{\displaystyle \frac{5\left(1-2^{-s-1}\right)}{6(s+1)}}-{\displaystyle \frac{1}{\alpha +\frac{\alpha +s+1}{2^{\alpha +s+1}-1}+s+1}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{5}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\\ {\displaystyle \frac{-6(s+1)\left({\left(\frac{6}{5}\right)}^{-\frac{\alpha +s+1}{\alpha }}-2^{-\alpha -s-1}\right)+5\alpha \left({\left(\frac{6}{5}\right)}^{-\frac{s+1}{\alpha }}-1\right)+5\left({\left(\frac{5}{6}\right)}^{\frac{s+1}{\alpha }}-2^{-s-1}\right)(\alpha +s+1)+s+1}{6(s+1)(\alpha +s+1)}},\alpha >{\displaystyle \frac{\ln \left(\frac{5}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\end{array}\right.\hfill \\ \hfill {\Xi }_4\left(\alpha ,s\right)& =& \left\{\begin{array}{c}-{\displaystyle \frac{\Gamma (\alpha +1)\Gamma (s+1)}{\Gamma (s+\alpha +2)}}+B_{{\displaystyle \frac{1}{2}}}(\alpha +1,s+1)+{\displaystyle \frac{52^{-s-2}}{3(s+1)}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{5}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\\ {\displaystyle \frac{5\left(2^{2-\frac{1}{\alpha }}\left({\left(\frac{5}{3}\right)}^{1/\alpha }-2^{1/\alpha }\right){\left(1-{\left(\frac{5}{6}\right)}^{1/\alpha }\right)}^s+2^{-s}\right)}{12(s+1)}}+{\displaystyle \frac{\Gamma (\alpha +1)\Gamma (s+1)}{\Gamma (s+\alpha +2)}}+B_{{\displaystyle \frac{1}{2}}}(\alpha +1,s+1)\\ -2B_{{\left({\displaystyle \frac{6}{5}}\right)}^{-1/\alpha }}(\alpha +1,s+1),\alpha >{\displaystyle \frac{\ln \left(\frac{5}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\end{array}\right.\hfill \end{array}$$

Proof. 

From Lemma 2 and using the multiplicative s-convexity of ${\Omega }^{*}$ after taking the modulus property in (6), we have

$$\begin{array}{cc}\hfill & \left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left[\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right]}^4\right]}^{\frac{1}{6}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\hfill \\ \hfill & \le \exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{2}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|d\varsigma \right)\right]\hfill \\ \hfill & \times \exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{2}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|d\varsigma \right)\right]\hfill \\ \hfill & \times \exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{2}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|d\varsigma \right)\right]\hfill \\ \hfill & \times \exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{2}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|d\varsigma \right)\right]\hfill \\ \hfill & =\exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{2}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|d\varsigma \right)\right.\hfill \\ \hfill & +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{2}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|d\varsigma \right)\hfill \\ \hfill & +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{2}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|d\varsigma \right)\hfill \\ \hfill & \left.+{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{2}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|d\varsigma \right)\right]\hfill \end{array}$$

(9)

$$\begin{array}{cc}\hfill & \le \exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{2}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_2\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_1\right)\right)d\varsigma \right)\right.\hfill \\ \hfill & +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{2}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_1\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_2\right)\right)d\varsigma \right)\hfill \\ \hfill & +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{2}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_2\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_1\right)\right)d\varsigma \right)\hfill \\ \hfill & \left.+{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{2}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_1\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_2\right)\right)d\varsigma \right)\right]\hfill \\ \hfill & =\exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Xi }_1\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)+{\Xi }_2\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)\right)\right.\hfill \\ \hfill & +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Xi }_1\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)+{\Xi }_2\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)\right)\hfill \\ \hfill & +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Xi }_3\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)+{\Xi }_4\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)\right)\hfill \\ \hfill & \left.+{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Xi }_3\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)+{\Xi }_4\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)\right)\right].\hfill \end{array}$$

(10)

By simple computation, we have

$$\begin{array}{c}{\int }_0^{{\displaystyle \frac{1}{2}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|{\varsigma }^{s}d\varsigma \hfill \\ =\left\{\begin{array}{c}{\displaystyle \frac{2^{-\frac{(\alpha +1)(\alpha +s+1)}{\alpha }}{3}^{-\frac{\alpha +s+1}{\alpha }}\left(\alpha 2^{\alpha +s+2}+6^{\frac{s+1}{\alpha }}\left(6(s+1)-2^{\alpha }(\alpha +s+1)\right)\right)}{(s+1)(\alpha +s+1)}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\\ {\displaystyle \frac{1}{3}}{2}^{-s-2}\left({\displaystyle \frac{32^{1-\alpha }}{\alpha +s+1}}-{\displaystyle \frac{1}{s+1}}\right),\alpha >{\displaystyle \frac{\ln \left(\frac{1}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\end{array}\right.\hfill \end{array}$$

(11)

$$\begin{array}{c}{\int }_0^{{\displaystyle \frac{1}{2}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|{\left(1-\varsigma \right)}^{s}d\varsigma \hfill \\ =\left\{\begin{array}{c}-{\displaystyle \frac{1}{6(s+1)}}\times {\left(1-6^{-1/\alpha }\right)}^s+\left(6^{1/\alpha }-2\right)6^{-{\displaystyle \frac{s+1}{\alpha }}}{\left(6^{1/\alpha }-1\right)}^s-6(s+1)B_{{\displaystyle \frac{1}{2}}}(\alpha +1,s+1)\\ +{\left(6^{-1/\alpha }\right)}^{-\alpha }\left(6{\left(6^{-1/\alpha }\right)}^{\alpha }+1\right)(s+1)B_{6^{-1/\alpha }}(\alpha +1,s+1)-2^{-s-1}-1,0<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\\ B_{{\displaystyle \frac{1}{2}}}(\alpha +1,s+1)-{\displaystyle \frac{2-2^{-s}}{12(s+1)}},\alpha >{\displaystyle \frac{\ln \left(\frac{1}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\end{array}\right.\hfill \end{array}$$

(12)

$$\begin{array}{c}{\int }_{{\displaystyle \frac{1}{2}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|{\varsigma }^{s}d\varsigma \hfill \\ =\left\{\begin{array}{c}{\displaystyle \frac{5\left(1-2^{-s-1}\right)}{6(s+1)}}-{\displaystyle \frac{1}{\alpha +\frac{\alpha +s+1}{2^{\alpha +s+1}-1}+s+1}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{5}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\\ {\displaystyle \frac{-6(s+1)\left({\left(\frac{6}{5}\right)}^{-\frac{\alpha +s+1}{\alpha }}-2^{-\alpha -s-1}\right)+5\alpha \left({\left(\frac{6}{5}\right)}^{-\frac{s+1}{\alpha }}-1\right)+5\left({\left(\frac{5}{6}\right)}^{\frac{s+1}{\alpha }}-2^{-s-1}\right)(\alpha +s+1)+s+1}{6(s+1)(\alpha +s+1)}},\alpha >{\displaystyle \frac{\ln \left(\frac{5}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\end{array}\right.\hfill \end{array}$$

(13)

$$\begin{array}{c}{\int }_{{\displaystyle \frac{1}{2}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|{\left(1-\varsigma \right)}^{s}d\varsigma \hfill \\ =\left\{\begin{array}{c}-{\displaystyle \frac{\Gamma (\alpha +1)\Gamma (s+1)}{\Gamma (s+\alpha +2)}}+B_{{\displaystyle \frac{1}{2}}}(\alpha +1,s+1)+{\displaystyle \frac{52^{-s-2}}{3(s+1)}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{5}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\\ {\displaystyle \frac{5\left(2^{2-\frac{1}{\alpha }}\left({\left(\frac{5}{3}\right)}^{1/\alpha }-2^{1/\alpha }\right){\left(1-{\left(\frac{5}{6}\right)}^{1/\alpha }\right)}^s+2^{-s}\right)}{12(s+1)}}+{\displaystyle \frac{\Gamma (\alpha +1)\Gamma (s+1)}{\Gamma (s+\alpha +2)}}+B_{{\displaystyle \frac{1}{2}}}(\alpha +1,s+1)\\ -2B_{{\left({\displaystyle \frac{6}{5}}\right)}^{-1/\alpha }}(\alpha +1,s+1),\alpha >{\displaystyle \frac{\ln \left(\frac{5}{6}\right)}{\ln \left(\frac{1}{2}\right)}},\end{array}\right.\hfill \end{array}$$

(14)

Hence,

$$\begin{array}{c}\hfill \left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left[\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right]}^4\right]}^{\frac{1}{6}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)\left({\Xi }_1\left(\alpha ,s\right)+{\Xi }_2\left(\alpha ,s\right)+{\Xi }_3\left(\alpha ,s\right)+{\Xi }_4\left(\alpha ,s\right)\right)}{2}}}.\end{array}$$

(15)

Using equality (11) to (14) in inequality (10), we obtained (15), thus completing the proof. □

Remark 2. 

By setting $\alpha =s=1$ in (8), then inequality (8) reduces to Theorem 4.1 in [23].

Remark 3. 

By setting $s=1$ in Theorem 5, then inequality (8) reduces to Theorem 4.1 in [24].

Remark 4. 

By setting $\alpha =1$ in inequality (8), then we obtain Theorem 6 in [22].

Corollary 1. 

By taking $\Omega \left({\omega }_1\right)=\Omega \left({\displaystyle \frac{{\omega }_1+{\omega }_2}{2}}\right)=\Omega \left({\omega }_2\right)$ in (8), then we have the following midpoint-type inequality:

$$\left|{\displaystyle \frac{\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)\left({\Xi }_1\left(\alpha ,s\right)+{\Xi }_2\left(\alpha ,s\right)+{\Xi }_3\left(\alpha ,s\right)+{\Xi }_4\left(\alpha ,s\right)\right)}{2}}}.$$

(16)

Remark 5. 

By setting $\alpha =s=1$ in Theorem 5, then we have the following inequality:

$$\left|{\displaystyle \frac{\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)}{{\left({\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varpi \right)\right)}^{d\varpi }\right)}^{\frac{1}{{\omega }_2-{\omega }_1}}}}\right|\le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{5\left({\omega }_2-{\omega }_1\right)}{72}}}.$$

(17)

Remark 6. 

Inequality (17) provided better bounds for midpoint-type inequalities in multiplicative calculus compared to those established in ([30], Theorem 3.3).

Theorem 6. 

Assuming that the conditions outlined in Lemma 2 hold, if ${\left(\ln \left({\Omega }^{*}\right)\right)}^q$ is multiplicative s-covex in the second sense on $\left[{\omega }_1,{\omega }_2\right]$, for some fixed $s\in \left(0,1\right]$, and $q>1,$ then the following Simpson’s type inequality holds:

$$\begin{array}{cc}\hfill & \left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left[\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right]}^4\right]}^{\frac{1}{6}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2\left(s+1\right)}}\left[{\mathrm{\Lambda }}_1\left(\alpha ,p\right)+{\mathrm{\Lambda }}_2\left(\alpha ,p\right)\right]},\hfill \end{array}$$

(18)

where

$$\begin{array}{ccc}\hfill {\mathrm{\Lambda }}_1\left(\alpha ,p\right)& =& {\left({\int }_0^{{\displaystyle \frac{1}{2}}}{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}},\hfill \\ \hfill {\mathrm{\Lambda }}_2\left(\alpha ,p\right)& =& {\left({\int }_{{\displaystyle \frac{1}{2}}}^1{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}},\hfill \end{array}$$

and ${\displaystyle \frac{1}{p}}+{\displaystyle \frac{1}{q}}=1$.

Proof. 

Using the Hölder’s inequality in (9), we have

$$\begin{array}{cc}\hfill & \left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left[\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right]}^4\right]}^{\frac{1}{6}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\hfill \\ \hfill & \le \exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}{\left({\int }_0^{{\displaystyle \frac{1}{2}}}{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{6}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}}\left\{{\left({\int }_0^{{\displaystyle \frac{1}{2}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right.\right.\hfill \\ \hfill & \left.+{\left({\int }_0^{{\displaystyle \frac{1}{2}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right\}\hfill \\ \hfill & +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}{\left({\int }_{{\displaystyle \frac{1}{2}}}^1{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{5}{6}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}}\left\{{\left({\int }_{{\displaystyle \frac{1}{2}}}^1{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right.\hfill \\ \hfill & \left.\left.+{\left({\int }_{{\displaystyle \frac{1}{2}}}^1{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right\}\right],\hfill \end{array}$$

(19)

where ${\displaystyle \frac{1}{p}}+{\displaystyle \frac{1}{q}}=1.$ Since ${\left(\ln \left({\Omega }^{*}\right)\right)}^q$ is multiplicatively s-convex in the second sense on $\left[{\omega }_1,{\omega }_2\right],$ then we obtain

$$\begin{array}{c}{\int }_0^{{\displaystyle \frac{1}{2}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \hfill \\ \le {\int }_0^{{\displaystyle \frac{1}{2}}}\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q\right]d\varsigma \hfill \\ ={\displaystyle \frac{2^{-s-1}{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+\left(1-2^{-s-1}\right){\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q}{1+s}},\hfill \end{array}$$

(20)

$$\begin{array}{c}{\int }_0^{{\displaystyle \frac{1}{2}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \hfill \\ \le {\int }_0^{{\displaystyle \frac{1}{2}}}\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q\right]d\varsigma \hfill \\ ={\displaystyle \frac{2^{-s-1}{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+\left(1-2^{-s-1}\right){\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q}{1+s}},\hfill \end{array}$$

(21)

$$\begin{array}{c}{\int }_{{\displaystyle \frac{1}{2}}}^1{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \hfill \\ \le {\int }_{{\displaystyle \frac{1}{2}}}^1\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q\right]d\varsigma \hfill \\ ={\displaystyle \frac{\left(1-2^{-s-1}\right){\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+2^{-s-1}{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q}{1+s}},\hfill \end{array}$$

(22)

and

$$\begin{array}{c}{\int }_{{\displaystyle \frac{1}{2}}}^1{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \hfill \\ \le {\int }_{{\displaystyle \frac{1}{2}}}^1\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q\right]d\varsigma \hfill \\ ={\displaystyle \frac{\left(1-2^{-s-1}\right){\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+2^{-s-1}{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q}{1+s}}.\hfill \end{array}$$

(23)

Using (20)–(23) in (19), we obtain

$$\begin{array}{ccc}& & \left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left[\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right]}^4\right]}^{\frac{1}{6}}}{{\left[{}_{*}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2\left(s+1\right)}}\left[{\mathrm{\Lambda }}_1\left(\alpha ,p\right)+{\mathrm{\Lambda }}_2\left(\alpha ,p\right)\right]}.\hfill \end{array}$$

This completes the proof. □

Remark 7. 

By taking $s=1$ in inequality (18), then we obtain Theorem 4.3, which is proved by Ali in [24].

Remark 8. 

By taking $\alpha =1$ in inequality (18), then we obtain Theorem 7, which is proved by Zhan et al. in [22].

Remark 9. 

By setting $\alpha =s=1$ in inequality (18), then we obtain the following inequality:

$$\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left[\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right]}^4\right]}^{\frac{1}{6}}}{{\left({\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varpi \right)\right)}^{d\varpi }\right)}^{\frac{1}{{\omega }_2-{\omega }_1}}}}\right|\le {\left(\sqrt{{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)}\right)}^{\left({\omega }_2-{\omega }_1\right){\left({\displaystyle \frac{2\left(1+2^{p+1}\right)}{6^{p+1}\left(p+1\right)}}\right)}^{{\displaystyle \frac{1}{p}}}}.$$

(24)

This inequality is established by Chasreechai et al. in [23].

Corollary 2. 

By taking $\Omega \left({\omega }_1\right)=\Omega \left({\displaystyle \frac{{\omega }_1+{\omega }_2}{2}}\right)=\Omega \left({\omega }_2\right)$ in inequality (24), then we have the following midpoint-type inequality:

$$\left|{\displaystyle \frac{\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)}{{\left({\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varpi \right)\right)}^{d\varpi }\right)}^{\frac{1}{{\omega }_2-{\omega }_1}}}}\right|\le {\left(\sqrt{{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)}\right)}^{\left({\omega }_2-{\omega }_1\right){\left({\displaystyle \frac{2\left(1+2^{p+1}\right)}{6^{p+1}\left(p+1\right)}}\right)}^{{\displaystyle \frac{1}{p}}}}.$$

3.2. Multiplicative Fractional Newton’s Type Inequalities

In this part, we proved Newton’s type inequalities for multiplicative generalized convex functions via Reimann–Liouville fractional integral by using Lemma 3.

Theorem 7. 

Assuming that the conditions outlined in Lemma 3 hold, if ${\Omega }^{*}$ is multiplicative s-convex in the second sense on $\left[{\omega }_1,{\omega }_2\right]$, for some fixed $s\in \left(0,1\right],$ then we have the following inequality:

$$\begin{array}{cc}\hfill & \left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\hfill \\ \hfill & \le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)\left({\Re }_1\left(\alpha ,s\right)+{\Re }_2\left(\alpha ,s\right)+{\Re }_3\left(\alpha ,s\right)+{\Re }_4\left(\alpha ,s\right)+{\Re }_5\left(\alpha ,s\right)+{\Re }_6\left(\alpha ,s\right)\right)}{2}}},\hfill \end{array}$$

(25)

where

$$\begin{array}{ccc}\hfill {\Re }_1\left(\alpha ,s\right)& =& \left\{\begin{array}{c}{\displaystyle \frac{2^{-\frac{3(\alpha +s+1)}{\alpha }}{3}^{-\alpha -s-1}\left(2\alpha 3^{\alpha +s+1}+8^{\frac{s+1}{\alpha }}\left(8(s+1)-3^{\alpha }(\alpha +s+1)\right)\right)}{(s+1)(\alpha +s+1)}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{8}\right)}{\ln \left(\frac{1}{3}\right)}},\\ {\displaystyle \frac{1}{8}}{3}^{-s-1}\left({\displaystyle \frac{83^{-\alpha }}{\alpha +s+1}}-{\displaystyle \frac{1}{s+1}}\right),\alpha >{\displaystyle \frac{\ln \left(\frac{1}{8}\right)}{\ln \left(\frac{1}{3}\right)}},\end{array}\right.\hfill \\ \hfill {\Re }_2\left(\alpha ,s\right)& =& \left\{\begin{array}{c}{\displaystyle \frac{1}{8(s+1)}}\left(-{\left(1-8^{-1/\alpha }\right)}^s+2^{1-{\displaystyle \frac{3(s+1)}{\alpha }}}{\left(8^{1/\alpha }-1\right)}^s-8^{-{\displaystyle \frac{s}{\alpha }}}{\left(8^{1/\alpha }-1\right)}^s\right.\\ +8(s+1)B_{{\displaystyle \frac{1}{3}}}(\alpha +1,s+1)-{\left(8^{-1/\alpha }\right)}^{-\alpha }\left(8{\left(8^{-1/\alpha }\right)}^{\alpha }+1\right)\\ \left.\times (s+1)B_{8^{-1/\alpha }}(\alpha +1,s+1)+{\left({\displaystyle \frac{3}{2}}\right)}^{-s-1}+1\right),0<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{8}\right)}{\ln \left(\frac{1}{3}\right)}},\\ B_{{\displaystyle \frac{1}{3}}}(\alpha +1,s+1)-{\displaystyle \frac{1-{\left(\frac{3}{2}\right)}^{-s-1}}{8(s+1)}},\alpha >{\displaystyle \frac{\ln \left(\frac{1}{8}\right)}{\ln \left(\frac{1}{3}\right)}},\end{array}\right.\hfill \\ \hfill {\Re }_3\left(\alpha ,s\right)& =& \left\{\begin{array}{c}{\displaystyle \frac{1}{2}}{3}^{-s-1}\left({\displaystyle \frac{3^{-\alpha }\left(2^{\alpha +s+2}-2\right)}{\alpha +s+1}}+{\displaystyle \frac{1-2^{s+1}}{s+1}}\right),0<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{2}\right)}{\ln \left(\frac{1}{3}\right)}},\\ {\displaystyle \frac{{\left(\frac{3}{2}\right)}^{-\alpha -s-1}}{\alpha +s+1}}+{\displaystyle \frac{2^{-\frac{s+1}{\alpha }}}{s+1}}+{\displaystyle \frac{3^{-\alpha -s-1}}{\alpha +s+1}}-{\displaystyle \frac{2^{-\frac{s+1}{\alpha }}}{\alpha +s+1}}-{\displaystyle \frac{2^s{3}^{-s-1}}{s+1}}-{\displaystyle \frac{3^{-s-1}}{2(s+1)}},{\displaystyle \frac{\ln \left(\frac{1}{2}\right)}{\ln \left(\frac{1}{3}\right)}}<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{2}\right)}{\ln \left(\frac{2}{3}\right)}},\\ {\displaystyle \frac{1}{2}}{3}^{-s-1}\left({\displaystyle \frac{2^{s+1}-1}{s+1}}-{\displaystyle \frac{23^{-\alpha }\left(2^{\alpha +s+1}-1\right)}{\alpha +s+1}}\right),\alpha >{\displaystyle \frac{\ln \left(\frac{1}{2}\right)}{\ln \left(\frac{2}{3}\right)}},\end{array}\right.\hfill \\ \hfill {\Re }_4\left(\alpha ,s\right)& =& \left\{\begin{array}{c}-B_{{\displaystyle \frac{1}{3}}}(\alpha +1,s+1)+B_{{\displaystyle \frac{2}{3}}}(\alpha +1,s+1)-{\displaystyle \frac{3^{-s-1}\left(2^{s+1}-1\right)}{2(s+1)}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{2}\right)}{\ln \left(\frac{1}{3}\right)}},\\ {\displaystyle \frac{1}{3}}\left(-{\displaystyle \frac{32^{-\frac{s+1}{\alpha }}{\left(2^{1/\alpha }-1\right)}^{s+1}}{s+1}}-6B_{2^{-1/\alpha }}(\alpha +1,s+1)+3B_{{\displaystyle \frac{1}{3}}}(\alpha +1,s+1)\right.\\ \left.+3B_{{\displaystyle \frac{2}{3}}}(\alpha +1,s+1)+{\displaystyle \frac{{\left(\frac{2}{3}\right)}^s}{s+1}}+{\displaystyle \frac{3^{-s}}{2s+2}}\right),{\displaystyle \frac{\ln \left(\frac{1}{2}\right)}{\ln \left(\frac{1}{3}\right)}}<\alpha \le {\displaystyle \frac{\ln \left(\frac{1}{2}\right)}{\ln \left(\frac{2}{3}\right)}},\\ B_{{\displaystyle \frac{1}{3}}}(\alpha +1,s+1)+{\displaystyle \frac{1}{6}}\left({\displaystyle \frac{3^{-s}\left(2^{s+1}-1\right)}{s+1}}-6B_{{\displaystyle \frac{2}{3}}}(\alpha +1,s+1)\right),\alpha >{\displaystyle \frac{\ln \left(\frac{1}{2}\right)}{\ln \left(\frac{2}{3}\right)}},\end{array}\right.\hfill \\ \hfill {\Re }_5\left(\alpha ,s\right)& =& \left\{\begin{array}{c}{\displaystyle \frac{7-7{\left(\frac{3}{2}\right)}^{-s-1}}{8s+8}}-{\displaystyle \frac{1-{\left(\frac{3}{2}\right)}^{-\alpha -s-1}}{\alpha +s+1}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{7}{8}\right)}{\ln \left(\frac{2}{3}\right)}},\\ {\displaystyle \frac{-8(s+1)\left({\left(\frac{7}{8}\right)}^{\frac{\alpha +s+1}{\alpha }}-{\left(\frac{3}{2}\right)}^{-\alpha -s-1}\right)+7\alpha \left({\left(\frac{8}{7}\right)}^{-\frac{s+1}{\alpha }}-1\right)+7\left({\left(\frac{7}{8}\right)}^{\frac{s+1}{\alpha }}-{\left(\frac{3}{2}\right)}^{-s-1}\right)(\alpha +s+1)+s+1}{8(s+1)(\alpha +s+1)}},\alpha >{\displaystyle \frac{\ln \left(\frac{7}{8}\right)}{\ln \left(\frac{2}{3}\right)}},\end{array}\right.\hfill \\ \hfill {\Re }_6\left(\alpha ,s\right)& =& \left\{\begin{array}{c}-{\displaystyle \frac{\Gamma (\alpha +1)\Gamma (s+1)}{\Gamma (s+\alpha +2)}}+B_{{\displaystyle \frac{2}{3}}}(\alpha +1,s+1)+{\displaystyle \frac{73^{-s-1}}{8(s+1)}},0<\alpha \le {\displaystyle \frac{\ln \left(\frac{7}{8}\right)}{\ln \left(\frac{2}{3}\right)}},\\ -{\displaystyle \frac{72^{-\frac{3(s+1)}{\alpha }-2}{\left(8^{1/\alpha }-7^{1/\alpha }\right)}^{s+1}}{s+1}}+{\displaystyle \frac{\Gamma (\alpha +1)\Gamma (s+1)}{\Gamma (s+\alpha +2)}}+B_{{\displaystyle \frac{2}{3}}}(\alpha +1,s+1)\\ -2B_{{\left({\displaystyle \frac{7}{8}}\right)}^{1/\alpha }}(\alpha +1,s+1)+{\displaystyle \frac{73^{-s-1}}{8(s+1)}},\alpha >{\displaystyle \frac{\ln \left(\frac{7}{8}\right)}{\ln \left(\frac{2}{3}\right)}},\end{array}\right.\hfill \end{array}$$

Proof. 

Taking the modulus in (7) and using the multiplicative s-convexity of ${\Omega }^{*}$, we have

$$\begin{array}{c}\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\hfill \\ \le \exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{3}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{8}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|d\varsigma \right)\right.\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{3}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{8}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|d\varsigma \right)\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{2}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|d\varsigma \right)\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{2}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|d\varsigma \right)\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{2}{3}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{7}{8}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|d\varsigma \right)\hfill \\ \left.+{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{2}{3}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{7}{8}}\right|\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|d\varsigma \right)\right]\hfill \\ \le \exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{3}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{8}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_2\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_1\right)\right)d\varsigma \right)\right.\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_0^{{\displaystyle \frac{1}{3}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{8}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_1\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_2\right)\right)d\varsigma \right)\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{2}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_2\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_1\right)\right)d\varsigma \right)\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{2}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_1\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_2\right)\right)d\varsigma \right)\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{2}{3}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{7}{8}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_2\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_1\right)\right)d\varsigma \right)\hfill \\ \left.+{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\int }_{{\displaystyle \frac{2}{3}}}^1\left|{\varsigma }^{\alpha }-{\displaystyle \frac{7}{8}}\right|\left({\varsigma }^s\ln {\Omega }^{*}\left({\omega }_1\right)+{\left(1-\varsigma \right)}^s\ln {\Omega }^{*}\left({\omega }_2\right)\right)d\varsigma \right)\right]\hfill \\ =\exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Re }_1\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)+{\Re }_2\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)\right)\right.\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Re }_1\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)+{\Re }_2\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)\right)\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Re }_3\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)+{\Re }_4\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)\right)\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Re }_3\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)+{\Re }_4\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)\right)\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Re }_5\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)+{\Re }_6\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)\right)\hfill \\ \left.+{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}\left({\Re }_5\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_1\right)+{\Re }_6\left(\alpha ,s\right)\ln {\Omega }^{*}\left({\omega }_2\right)\right)\right].\hfill \end{array}$$

(26)

Hence,

$$\begin{array}{c}\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\hfill \\ \le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)\left({\Re }_1\left(\alpha ,s\right)+{\Re }_2\left(\alpha ,s\right)+{\Re }_3\left(\alpha ,s\right)+{\Re }_4\left(\alpha ,s\right)+{\Re }_5\left(\alpha ,s\right)+{\Re }_6\left(\alpha ,s\right)\right)}{2}}}.\hfill \end{array}$$

This completes the proof. □

Remark 10. 

By setting $s=1$ in Theorem 7, then inequality (25) is reduced to Theorem 5.1 in [24].

Corollary 3. 

By setting $\alpha =1$ in Theorem 7, then we obtain the following inequality:

$$\begin{array}{cc}\hfill & \left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left({\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varpi \right)\right)}^{d\varpi }\right)}^{\frac{1}{{\omega }_2-{\omega }_1}}}}\right|\hfill \\ \hfill & \le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)\Im }{2}}},\hfill \end{array}$$

where $\Im ={\displaystyle \frac{2^{-3s-4}{3}^{-s-2}\left(-8^{s+1}\left(172^{s+1}+3^{s+3}+7\right)+3^{s+2}\left(4^{s+2}+7^{s+2}+1\right)-2^{3s+2}\left(2^{s+1}-3^{s+2}-1\right)s\right)}{(s+1)(s+2)}}.$

Remark 11. 

By setting $\alpha =s=1$ in Theorem 7, then inequality (25) is reduced to Theorem 5.1 in [23].

Theorem 8. 

Assuming that the conditions outlined in Lemma 3 hold, if ${\left(\ln \left({\Omega }^{*}\right)\right)}^q$ is multiplicatively s-convex in the second sense on $\left[{\omega }_1,{\omega }_2\right]$, for some fixed $s\in \left(0,1\right]$, ${\displaystyle \frac{1}{p}}+{\displaystyle \frac{1}{q}}=1$, and $q>1,$ then we have:

$$\begin{array}{c}\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\hfill \\ \le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)}{2}}\left({\displaystyle \frac{3^{-1-s}\left(1-2^{s+1}+3^{1+s}\right)}{s+1}}\right)\left[{\gamma }_1\left(\alpha ,p\right)+{\gamma }_3\left(\alpha ,p\right)\right]+{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)}{2}}\left({\displaystyle \frac{3^{-1-s}\left(2-2^{s+1}\right)}{s+1}}\right)\left[{\gamma }_2\left(\alpha ,p\right)\right]}.\hfill \end{array}$$

(27)

where

$$\begin{array}{ccc}\hfill {\gamma }_1\left(\alpha ,p\right)& =& {\left({\int }_0^{{\displaystyle \frac{1}{3}}}{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{8}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}},\hfill \\ \hfill {\gamma }_2\left(\alpha ,p\right)& =& {\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{2}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}},\hfill \\ \hfill {\gamma }_3\left(\alpha ,p\right)& =& {\left({\int }_{{\displaystyle \frac{2}{3}}}^1{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{7}{8}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}}.\hfill \end{array}$$

Proof. 

Using the Hölder inequality in (26), we have

$$\begin{array}{c}\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\hfill \\ \le \exp \left[{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}{\left({\int }_0^{{\displaystyle \frac{1}{3}}}{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{8}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}}\left\{{\left({\int }_0^{{\displaystyle \frac{1}{3}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right.\right.\hfill \\ \left.+{\left({\int }_0^{{\displaystyle \frac{1}{3}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right\}\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}{\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{2}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}}\left\{{\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right.\hfill \\ \left.+{\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right\}\hfill \\ +{\displaystyle \frac{{\omega }_2-{\omega }_1}{2}}{\left({\int }_{{\displaystyle \frac{2}{3}}}^1{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{7}{8}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}}\left\{{\left({\int }_{{\displaystyle \frac{2}{3}}}^1{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right.\hfill \\ \left.\left.+{\left({\int }_{{\displaystyle \frac{2}{3}}}^1{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \right)}^{{\displaystyle \frac{1}{q}}}\right\}\right].\hfill \end{array}$$

(28)

Since ${\left(\ln \left({\Omega }^{*}\right)\right)}^q$ is multiplicatively s-convex in the second sense, then we have

$$\begin{array}{c}{\int }_0^{{\displaystyle \frac{1}{3}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \hfill \\ \le {\int }_0^{{\displaystyle \frac{1}{3}}}\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q\right]d\varsigma \hfill \\ ={\displaystyle \frac{3^{-s-1}{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+\left(1-{\left(\frac{3}{2}\right)}^{-s-1}\right){\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q}{1+s}},\hfill \end{array}$$

(29)

$$\begin{array}{c}{\int }_0^{{\displaystyle \frac{1}{3}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \hfill \\ \le {\int }_0^{{\displaystyle \frac{1}{3}}}\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q\right]d\varsigma \hfill \\ ={\displaystyle \frac{3^{-s-1}{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+\left(1-{\left(\frac{3}{2}\right)}^{-s-1}\right){\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q}{1+s}},\hfill \end{array}$$

(30)

$$\begin{array}{c}{\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \hfill \\ \le {\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q\right]d\varsigma \hfill \\ ={\displaystyle \frac{3^{-s-1}\left(2^{s+1}-1\right){\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+3^{-s-1}\left(2^{s+1}-1\right){\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q}{1+s}},\hfill \end{array}$$

(31)

$$\begin{array}{c}{\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \hfill \\ \le {\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q\right]d\varsigma \hfill \\ ={\displaystyle \frac{3^{-s-1}\left(2^{s+1}-1\right){\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+3^{-s-1}\left(2^{s+1}-1\right){\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q}{1+s}},\hfill \end{array}$$

(32)

$$\begin{array}{c}{\int }_{{\displaystyle \frac{2}{3}}}^1{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_2+\left(1-\varsigma \right){\omega }_1\right)\right)\right|}^{q}d\varsigma \hfill \\ \le {\int }_{{\displaystyle \frac{2}{3}}}^1\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q\right]d\varsigma \hfill \\ ={\displaystyle \frac{\left(1-{\left(\frac{3}{2}\right)}^{-s-1}\right){\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q+3^{-s-1}{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q}{1+s}},\hfill \end{array}$$

(33)

and

$$\begin{array}{cc}\hfill & {\int }_{{\displaystyle \frac{2}{3}}}^1{\left|\ln \left({\Omega }^{*}\left(\varsigma {\omega }_1+\left(1-\varsigma \right){\omega }_2\right)\right)\right|}^{q}d\varsigma \hfill \\ \hfill & \le {\int }_{{\displaystyle \frac{2}{3}}}^1\left[{\varsigma }^s{\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+{\left(1-\varsigma \right)}^s{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q\right]d\varsigma \hfill \\ \hfill & ={\displaystyle \frac{\left(1-{\left(\frac{3}{2}\right)}^{-s-1}\right){\left(\ln {\Omega }^{*}\left({\omega }_1\right)\right)}^q+3^{-s-1}{\left(\ln {\Omega }^{*}\left({\omega }_2\right)\right)}^q}{1+s}}.\hfill \end{array}$$

(34)

Using (29)–(34) in (28), we obtain

$$\begin{array}{c}\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|\hfill \\ \le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)}{2}}\left({\displaystyle \frac{3^{-1-s}\left(1-2^{s+1}+3^{1+s}\right)}{s+1}}\right)\left[{\gamma }_1\left(\alpha ,p\right)+{\gamma }_3\left(\alpha ,p\right)\right]+{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)}{2}}\left({\displaystyle \frac{3^{-1-s}\left(2-2^{s+1}\right)}{s+1}}\right)\left[{\gamma }_2\left(\alpha ,p\right)\right]}.\hfill \end{array}$$

This completes the proof. □

Remark 12. 

By setting $s=1$ in Theorem 8, then inequality (27) is reduced to Theorem 5.3 in [24].

Remark 13. 

By setting $\alpha =s=1$ in Theorem 8, then inequality (27) is reduced to Theorem 5.2 in [23].

Corollary 4. 

By setting $\alpha =1$ in Theorem 7, then we obtain the following inequality:

$$\begin{array}{c}\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left({\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varpi \right)\right)}^{d\varpi }\right)}^{\frac{1}{{\omega }_2-{\omega }_1}}}}\right|\hfill \\ \le {\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)}{2}}\left({\displaystyle \frac{3^{-1-s}\left(1-2^{s+1}+3^{1+s}\right)}{s+1}}\right)\left[{\Psi }_1\left(p\right)+{\Psi }_3\left(p\right)\right]+{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)}{2}}\left({\displaystyle \frac{3^{-1-s}\left(2-2^{s+1}\right)}{s+1}}\right)\left[{\Psi }_2\left(p\right)\right]},\hfill \end{array}$$

where

$$\begin{array}{ccc}\hfill {\Psi }_1\left(p\right)& =& {\left({\int }_0^{{\displaystyle \frac{1}{3}}}{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{8}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}},\hfill \\ \hfill {\Psi }_2\left(p\right)& =& {\left({\int }_{{\displaystyle \frac{1}{3}}}^{{\displaystyle \frac{2}{3}}}{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{1}{2}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}},\hfill \\ \hfill {\Psi }_3\left(p\right)& =& {\left({\int }_{{\displaystyle \frac{2}{3}}}^1{\left|{\varsigma }^{\alpha }-{\displaystyle \frac{7}{8}}\right|}^{p}d\varsigma \right)}^{{\displaystyle \frac{1}{p}}}.\hfill \end{array}$$

4. Numerical Examples and Their Computational Analysis

In this section, we conducted a comprehensive numerical analysis to validate the effectiveness of newly derived results. Through various numerical tests, we assess the accuracy and efficiency of the proposed approach in approximating integrals of differentiable multiplicatively convex functions. We aim to corroborate the theoretical findings with concrete numerical evidence and evaluate the performance of Simpson’s and Newton’s type inequalities across various scenarios.

Example 1. 

Let $\Omega :\left[{\omega }_1,{\omega }_2\right]=\left[1,2\right]\to {\mathbb{R}}^{+}$ be a function defined by $\Omega \left(\varsigma \right)=2^{s{\varsigma }^2-3}$. In addition, $s={\displaystyle \frac{1}{5}}$, $\alpha ={\displaystyle \frac{1}{2}}$, and $\varpi \in \left({\omega }_1,{\omega }_2\right)$, and the left-hand side of (8) is

$$\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left[\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right]}^4\right]}^{\frac{1}{6}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|=0.5998,$$

(35)

and the right-hand side of (8) is

$${\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)\left({\Xi }_1\left(\alpha ,s\right)+{\Xi }_2\left(\alpha ,s\right)+{\Xi }_3\left(\alpha ,s\right)+{\Xi }_4\left(\alpha ,s\right)\right)}{2}}}=1.3231.$$

(36)

From (35) and (36), it is clear that

$$0.5998<1.3231,$$

which demonstrates the result described in Theorem 5.

The graph of the inequalities of Example 1 is depicted in Figure 1 for $\alpha \in (0,1]$ and $s\in [0,1]$, which demonstrates the validity of Theorem 5.

Figure 1. Graphical visualization of Theorem 5.

Example 2. 

Let $\Omega :\left[{\omega }_1,{\omega }_2\right]=\left[1,2\right]\to {\mathbb{R}}^{+}$ be a function defined by $\Omega \left(\varsigma \right)=2^{s{\varsigma }^2-3}$. In addition $s={\displaystyle \frac{3}{4}}$, $\alpha ={\displaystyle \frac{1}{2}},$ $p=2$ and $\varpi \in \left({\omega }_1,{\omega }_2\right)$, then the left-hand side of (18) is

$$\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right)\Omega \left({\omega }_2\right){\left[\Omega \left(\frac{{\omega }_1+{\omega }_2}{2}\right)\right]}^4\right]}^{\frac{1}{6}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|=0.7854,$$

(37)

and the right-hand side of (18) is

$${\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{{\omega }_2-{\omega }_1}{2\left(s+1\right)}}\left[{\mathrm{\Lambda }}_1\left(\alpha ,p\right)+{\mathrm{\Lambda }}_2\left(\alpha ,p\right)\right]}=1.3172.$$

(38)

From (37) and (38), it is clear that

$$0.7854<1.3172,$$

which demonstrates the result described in Theorem 6.

Example 3. 

Let $\Omega :\left[{\omega }_1,{\omega }_2\right]=\left[2,4\right]\to {\mathbb{R}}^{+}$ be a function defined by $\Omega \left(\varsigma \right)=e^{s{\varsigma }^2}$. In addition $s={\displaystyle \frac{1}{5}}$, $\alpha ={\displaystyle \frac{1}{2}}$ and $\varpi \in \left({\omega }_1,{\omega }_2\right)$, then the left-hand side of (25) is

$$\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|=0.5898,$$

(39)

and the right-hand side of (25) is

$${\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)\left({\Re }_1\left(\alpha ,s\right)+{\Re }_2\left(\alpha ,s\right)+{\Re }_3\left(\alpha ,s\right)+{\Re }_4\left(\alpha ,s\right)+{\Re }_5\left(\alpha ,s\right)+{\Re }_6\left(\alpha ,s\right)\right)}{2}}}=1.4412.$$

(40)

From (39) and (40), it is clear that

$$0.5898<1.4412,$$

which demonstrates the result described in Theorem 7.

The graph of the inequalities of Example 3 is depicted in Figure 2 for $s=1/5$ and $\alpha =1/2$, which demonstrates the validity of Theorem 7.

Figure 2. Graphical visualization of Theorem 7.

Example 4. 

Let $\Omega :\left[{\omega }_1,{\omega }_2\right]=\left[1,2\right]\to {\mathbb{R}}^{+}$ be a function defined by $\Omega \left(\varsigma \right)={\varsigma }^{4s}$. In addition, $s={\displaystyle \frac{3}{4}}$, $\alpha ={\displaystyle \frac{1}{2}},$ $p=2$, and $\varpi \in \left({\omega }_1,{\omega }_2\right)$, then the left-hand side of (27) is

$$\left|{\displaystyle \frac{{\left[\Omega \left({\omega }_1\right){\left[\Omega \left(\frac{2{\omega }_1+{\omega }_2}{3}\right)\right]}^3{\left[\Omega \left(\frac{{\omega }_1+2{\omega }_2}{3}\right)\right]}^3\Omega \left({\omega }_2\right)\right]}^{\frac{1}{8}}}{{\left[{}_{\mathrm{*}}I_{{\omega }_1^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{{\omega }_2^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left({\omega }_2-{\omega }_1\right)}}}}\right|=1.3805,$$

(41)

and the right-hand side of (27) is

$$\begin{array}{c}{\left[{\Omega }^{*}\left({\omega }_1\right){\Omega }^{*}\left({\omega }_2\right)\right]}^{{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)}{2}}\left({\displaystyle \frac{3^{-1-s}\left(1-2^{s+1}+3^{1+s}\right)}{s+1}}\right)\left[{\gamma }_1\left(\alpha ,p\right)+{\gamma }_2\left(\alpha ,p\right)\right]+{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)}{2}}\left({\displaystyle \frac{3^{-1-s}\left(2-2^{s+1}\right)}{s+1}}\right)\left[{\gamma }_2\left(\alpha ,p\right)\right]}\hfill \\ =2.5421.\hfill \end{array}$$

(42)

From (41) and (42), it is clear that

$$1.3805<2.5421,$$

which demonstrates the result described in Theorem 8.

5. Applications to Quadrature Formula

In this section, we explore the application of the derived Simpson’s and Newton’s type inequalities to Quadrature formulas in multiplicative calculus. Applying Simpson’s and Newton’s inequalities to the Quadrature formula enhances the accuracy and efficiency of numerical integration techniques. By incorporating these inequalities, we can refine the approximation process in the Quadrature formula, particularly for functions with specific properties such as multiplicative convexity. These applications extend the theoretical understanding of Simpson’s and Newton’s inequalities and demonstrate their practical relevance in numerical analysis and computational mathematics.

5.1. Applications to Simpson’s Formula

Let $\mathrm{{\rm Y}}$ be a partition of the points ${\omega }_1=u_0<u_1<u_2<\dots <u_{n-1}={\omega }_2$ of the interval $\left[{\omega }_1,{\omega }_2\right],$ and consider Simpson’s quadrature formula:

$${\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varpi \right)\right)}^{d\varpi }=\left\{\begin{array}{c}R\left(\Omega ,\mathrm{{\rm Y}}\right)\lambda \left(\Omega ,\mathrm{{\rm Y}}\right),\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)\ge 0\\ {\displaystyle \frac{R\left(\Omega ,\mathrm{{\rm Y}}\right)}{\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)}},\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)<0\end{array}\right.,$$

(43)

where

$$\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)={\mathrm{\Pi }}_{i=0}^{n-1}{\left[\left(\Omega \left(u_i\right)\right)\Omega {\left({\displaystyle \frac{u_i+u_{i+1}}{2}}\right)}^4\left(\Omega \left(u_{i+1}\right)\right)\right]}^{{\displaystyle \frac{\left(u_{i+1}-u_i\right)}{6}}},$$

is the multiplicative version of Simpson’s formula and the remainder term $R\left(\Omega ,\mathrm{{\rm Y}}\right)$ satisfies the estimation:

$$\left|R\left(\Omega ,\mathrm{{\rm Y}}\right)\right|\le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2\left({\Xi }_1\left(\alpha ,s\right)+{\Xi }_2\left(\alpha ,s\right)+{\Xi }_3\left(\alpha ,s\right)+{\Xi }_4\left(\alpha ,s\right)\right)}{2}}},$$

where ${\Xi }_1\left(\alpha ,s\right),{\Xi }_2\left(\alpha ,s\right),{\Xi }_3\left(\alpha ,s\right)$, and ${\Xi }_4\left(\alpha ,s\right)$ are defined in Theorem 5. Now, we derive some error estimates for Simpson’s formula.

Proposition 1. 

Using the conditions set in Theorem 5, then in (43), for every division Υ of $\left[{\omega }_1,{\omega }_2\right]$, we have

$$\left|R\left(\Omega ,\mathrm{{\rm Y}}\right)\right|\le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2\left({\Xi }_1\left(\alpha ,s\right)+{\Xi }_2\left(\alpha ,s\right)+{\Xi }_3\left(\alpha ,s\right)+{\Xi }_4\left(\alpha ,s\right)\right)}{2}}},$$

(44)

where ${\Xi }_1\left(\alpha ,s\right),{\Xi }_2\left(\alpha ,s\right),{\Xi }_3\left(\alpha ,s\right)$, and ${\Xi }_4\left(\alpha ,s\right)$ are defined in Theorem 5.

Proof. 

Applying Theorem 5 on the subinterval $\left[u_i,u_{i+1}\right]$ of the division $\mathrm{{\rm Y}}$, we obtain

$$\begin{array}{c}\left|{\displaystyle \frac{{\left[\left(\Omega \left(u_i\right)\right)\Omega {\left(\frac{u_i+u_{i+1}}{2}\right)}^4\left(\Omega \left(u_{i+1}\right)\right)\right]}^{\frac{\left(u_{i+1}-u_i\right)}{6}}}{{\left[{}_{\mathrm{*}}I_{u_i^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{u_{i+1}^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left(u_{i+1}-u_i\right)}}}}\right|\hfill \\ \le {\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2\left({\Xi }_1\left(\alpha ,s\right)+{\Xi }_2\left(\alpha ,s\right)+{\Xi }_3\left(\alpha ,s\right)+{\Xi }_4\left(\alpha ,s\right)\right)}{2}}},\hfill \end{array}$$

(45)

where $h_i={\displaystyle \frac{u_{i+1}-u_i}{2}},$$i=0,1,2,\dots ,n-1$. Taking product in (45) and using triangular inequality, we have

$$\begin{array}{c}\left|{\displaystyle \frac{\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)}{{\left[{}_{\mathrm{*}}I_{u_i^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{u_{i+1}^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left(u_{i+1}-u_i\right)}}}}\right|\hfill \\ =\left|{\mathrm{\Pi }}_{i=0}^{n-1}{\displaystyle \frac{{\left[\left(\Omega \left(u_i\right)\right)\Omega {\left(\frac{u_i+u_{i+1}}{2}\right)}^4\left(\Omega \left(u_{i+1}\right)\right)\right]}^{\frac{\left(u_{i+1}-u_i\right)}{6}}}{{\left[{}_{\mathrm{*}}I_{u_i^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{u_{i+1}^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left(u_{i+1}-u_i\right)}}}}\right|\hfill \\ \le {\mathrm{\Pi }}_{i=0}^{n-1}\left|{\displaystyle \frac{{\left[\left(\Omega \left(u_i\right)\right)\Omega {\left(\frac{u_i+u_{i+1}}{2}\right)}^4\left(\Omega \left(u_{i+1}\right)\right)\right]}^{\frac{\left(u_{i+1}-u_i\right)}{6}}}{{\left[{}_{\mathrm{*}}I_{u_i^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{u_{i+1}^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left(u_{i+1}-u_i\right)}}}}\right|\hfill \\ \le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2\left({\Xi }_1\left(\alpha ,s\right)+{\Xi }_2\left(\alpha ,s\right)+{\Xi }_3\left(\alpha ,s\right)+{\Xi }_4\left(\alpha ,s\right)\right)}{2}}}.\hfill \end{array}$$

(46)

For instance, if $\alpha =1$ in (46), then we have

$$\begin{array}{c}\left|{\displaystyle \frac{\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)}{{\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(u\right)\right)}^{du}}}\right|\hfill \\ \le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\left(u_{i+1}-u_i\right)}^2\left({\displaystyle \frac{2^{-1-s}\times 3^{-2-s}\left(1-2^{2+s}\times 3^{1+s}-3^{2+s}+5^{2+s}+2^s\times 3^{1+s}s\right)}{2+3s+s^2}}\right)}.\hfill \end{array}$$

(47)

If $s=1$ in (47), then we have

$$\begin{array}{c}\left|{\displaystyle \frac{\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)}{{\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(u\right)\right)}^{du}}}\right|\le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{5{\left(u_{i+1}-u_i\right)}^2}{72}}}.\hfill \end{array}$$

This completes the proof. □

Proposition 2. 

Using the conditions set in Theorem 6, then in (43), for every division Υ of $\left[{\omega }_1,{\omega }_2\right]$, we have

$$\left|R\left(\Omega ,\mathrm{{\rm Y}}\right)\right|\le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2}{2\left(s+1\right)}}\left[{\mathrm{\Lambda }}_1\left(\alpha ,p\right)+{\mathrm{\Lambda }}_2\left(\alpha ,p\right)\right]},$$

where ${\mathrm{\Lambda }}_1\left(\alpha ,p\right)$ and ${\mathrm{\Lambda }}_2\left(\alpha ,p\right)$ are defined in Theorem 6.

Proof. 

With the help of Theorem 6, the proof is similar to Proposition 1. □

Remark 14. 

The traditional error estimates for Simpson’s formula rely on the fourth-derivative ${\left|\left|{\Omega }^{\left(4\right)}\right|\right|}_{\infty }$ from Taylor expansions. When the fourth derivative ${\Omega }^{\left(4\right)}$ is either non-existent or significantly large across $\left[{\omega }_1,{\omega }_2\right]$, these conventional estimates become impractical. In such scenarios, Equation (44) introduce alternative approximations for Simpson’s formula, marking a fresh perspective within multiplicative calculus.

5.2. Applications to Newton’s Formula

Let $\mathrm{{\rm Y}}$ be a partition of the points ${\omega }_1=u_0<u_1<u_2<\dots <u_{n-1}={\omega }_2$ of the interval $\left[{\omega }_1,{\omega }_2\right],$ and consider Newton’s quadrature formula:

$${\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(\varpi \right)\right)}^{d\varpi }=\left\{\begin{array}{c}R\left(\Omega ,\mathrm{{\rm Y}}\right)\lambda \left(\Omega ,\mathrm{{\rm Y}}\right),\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)\ge 0\\ {\displaystyle \frac{R\left(\Omega ,\mathrm{{\rm Y}}\right)}{\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)}},\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)<0\end{array}\right.,$$

(48)

where

$$\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)={\mathrm{\Pi }}_{i=0}^{n-1}{\left[\left(\Omega \left(u_i\right)\right)\Omega {\left({\displaystyle \frac{2u_i+u_{i+1}}{3}}\right)}^3\Omega {\left({\displaystyle \frac{u_i+2u_{i+1}}{3}}\right)}^3\left(\Omega \left(u_{i+1}\right)\right)\right]}^{{\displaystyle \frac{\left(u_{i+1}-u_i\right)}{8}}},$$

is the multiplicative version of Newton’s formula and the remainder term $R\left(\Omega ,\mathrm{{\rm Y}}\right)$ satisfies the estimation:

$$\left|R\left(\Omega ,\mathrm{{\rm Y}}\right)\right|\le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2\left({\Re }_1\left(\alpha ,s\right)+{\Re }_2\left(\alpha ,s\right)+{\Re }_3\left(\alpha ,s\right)+{\Re }_4\left(\alpha ,s\right)+{\Re }_5\left(\alpha ,s\right)+{\Re }_6\left(\alpha ,s\right)\right)}{2}}},$$

where ${\Re }_1\left(\alpha ,s\right),{\Re }_2\left(\alpha ,s\right),{\Re }_3\left(\alpha ,s\right),{\Re }_4\left(\alpha ,s\right),{\Re }_5\left(\alpha ,s\right)$, and ${\Re }_6\left(\alpha ,s\right)$ are defined in Theorem 7. Now, we derive some error estimates for Newton’s formula.

Proposition 3. 

Using the conditions set in Theorem 7, then in (48), for every division Υ of $\left[{\omega }_1,{\omega }_2\right]$, we have

$$\left|R\left(\Omega ,d\right)\right|\le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2\left({\Re }_1\left(\alpha ,s\right)+{\Re }_2\left(\alpha ,s\right)+{\Re }_3\left(\alpha ,s\right)+{\Re }_4\left(\alpha ,s\right)+{\Re }_5\left(\alpha ,s\right)+{\Re }_6\left(\alpha ,s\right)\right)}{2}}},$$

where ${\Re }_1\left(\alpha ,s\right),{\Re }_2\left(\alpha ,s\right),{\Re }_3\left(\alpha ,s\right),{\Re }_4\left(\alpha ,s\right),{\Re }_5\left(\alpha ,s\right)$ and ${\Re }_6\left(\alpha ,s\right)$ are defined in Theorem 7.

Proof. 

Applying Theorem 7 on the subinterval $\left[u_i,u_{i+1}\right]$ of the division $\mathrm{{\rm Y}}$, we obtain

$$\begin{array}{c}\left|{\displaystyle \frac{{\left[\left(\Omega \left(u_i\right)\right)\Omega {\left(\frac{2u_i+u_{i+1}}{3}\right)}^3\Omega {\left(\frac{u_i+2u_{i+1}}{3}\right)}^3\left(\Omega \left(u_{i+1}\right)\right)\right]}^{\frac{\left(u_{i+1}-u_i\right)}{8}}}{{\left[{}_{\mathrm{*}}I_{u_i^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{u_{i+1}^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left(u_{i+1}-u_i\right)}}}}\right|\hfill \\ \le {\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2\left({\Re }_1\left(\alpha ,s\right)+{\Re }_2\left(\alpha ,s\right)+{\Re }_3\left(\alpha ,s\right)+{\Re }_4\left(\alpha ,s\right)+{\Re }_5\left(\alpha ,s\right)+{\Re }_6\left(\alpha ,s\right)\right)}{2}}},\hfill \end{array}$$

(49)

where $h_i={\displaystyle \frac{u_{i+1}-u_i}{n}},$$i=0,1,2,\dots ,n-1$. Taking product in (49) and using triangular inequality, we have

$$\begin{array}{c}\left|{\displaystyle \frac{\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)}{{\left[{}_{\mathrm{*}}I_{u_i^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{u_{i+1}^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left(u_{i+1}-u_i\right)}}}}\right|\hfill \\ =\left|{\mathrm{\Pi }}_{i=0}^{n-1}{\displaystyle \frac{{\left[\left(\Omega \left(u_i\right)\right)\Omega {\left(\frac{2u_i+u_{i+1}}{3}\right)}^3\Omega {\left(\frac{u_i+2u_{i+1}}{3}\right)}^3\left(\Omega \left(u_{i+1}\right)\right)\right]}^{\frac{\left(u_{i+1}-u_i\right)}{8}}}{{\left[{}_{\mathrm{*}}I_{u_i^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{u_{i+1}^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left(u_{i+1}-u_i\right)}}}}\right|\hfill \\ \le {\mathrm{\Pi }}_{i=0}^{n-1}\left|{\displaystyle \frac{{\left[\left(\Omega \left(u_i\right)\right)\Omega {\left(\frac{2u_i+u_{i+1}}{3}\right)}^3\Omega {\left(\frac{u_i+2u_{i+1}}{3}\right)}^3\left(\Omega \left(u_{i+1}\right)\right)\right]}^{\frac{\left(u_{i+1}-u_i\right)}{8}}}{{\left[{}_{\mathrm{*}}I_{u_i^{+}}^{\alpha }\Omega \left(\varpi \right){.}_{u_{i+1}^{-}}{I}_{*}^{\alpha }\Omega \left(\varpi \right)\right]}^{\frac{\Gamma \left(\alpha +1\right)}{2\left(u_{i+1}-u_i\right)}}}}\right|\hfill \\ \le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2\left({\Re }_1\left(\alpha ,s\right)+{\Re }_2\left(\alpha ,s\right)+{\Re }_3\left(\alpha ,s\right)+{\Re }_4\left(\alpha ,s\right)+{\Re }_5\left(\alpha ,s\right)+{\Re }_6\left(\alpha ,s\right)\right)}{2}}}.\hfill \end{array}$$

(50)

For instance, if $\alpha =1$ in (50), then we have

$$\begin{array}{c}\left|{\displaystyle \frac{\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)}{{\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(u\right)\right)}^{du}}}\right|\le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2\Im }{2}}},\hfill \end{array}$$

(51)

where ℑ is defined in Corollary 3. If $s=1$ in (51), then we have

$$\begin{array}{c}\left|{\displaystyle \frac{\lambda \left(\Omega ,\mathrm{{\rm Y}}\right)}{{\int }_{{\omega }_1}^{{\omega }_2}{\left(\Omega \left(u\right)\right)}^{du}}}\right|\le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{25{\left(u_{i+1}-u_i\right)}^2}{576}}}.\hfill \end{array}$$

This completes the proof. □

Proposition 4. 

Using the conditions set in Theorem 8, then in (48), for every division Υ of $\left[{\omega }_1,{\omega }_2\right]$, we have

$$\begin{array}{c}\left|R\left(\Omega ,\mathrm{{\rm Y}}\right)\right|\hfill \\ \le {\mathrm{\Pi }}_{i=0}^{n-1}{\left[{\Omega }^{*}\left(u_i\right){\Omega }^{*}\left(u_{i+1}\right)\right]}^{{\displaystyle \frac{{\left(u_{i+1}-u_i\right)}^2}{2}}\left({\displaystyle \frac{3^{-1-s}\left(1-2^{s+1}+3^{1+s}\right)}{s+1}}\right)\left[{\gamma }_1\left(\alpha ,p\right)+{\gamma }_3\left(\alpha ,p\right)\right]+{\displaystyle \frac{\left({\omega }_2-{\omega }_1\right)}{2}}\left({\displaystyle \frac{3^{-1-s}\left(2-2^{s+1}\right)}{s+1}}\right)\left[{\gamma }_2\left(\alpha ,p\right)\right]},\hfill \end{array}$$

where ${\gamma }_1\left(\alpha ,p\right),{\gamma }_3\left(\alpha ,p\right)$, and ${\gamma }_2\left(\alpha ,p\right)$ are defined in Theorem 8.

Proof. 

With the help of Theorem 8, the proof is similar to Proposition 3. □

6. Conclusions

In conclusion, the research presented in this paper on multiplicative fractional Simpson’s and Newton’s type inequalities marks a significant advancement in numerical analysis and mathematical computation. This study has expanded the theoretical framework surrounding these inequalities and opened up new avenues for approximating definite integrals and solving mathematical problems. We established multiplicative fractional integral inequalities of Simpson’s and Newton’s type for generalized convex functions in the second sense. The use of multiplicative generalized convex function extends the results for convex functions and covers a large class of functions. The multiplicative generalized convex function also gave the best approximation. For example, from Table 1, it is clearly observed that when $s\to 1^{-}$, we obtain the poor approximation, which is the case for convex functions, and when $s\to 0^{+}$, we obtain very good lower and upper bounds of the inequalities. We conclude that the bounds obtained through generalized convex functions are better as compared to convex functions. Applying these results to the Quadrature formula demonstrates their practical utility in numerical integration. Furthermore, numerical analysis provides empirical evidence of the effectiveness of the derived findings. By understanding the results of this paper, future researchers can derive similar inequalities for coordinate convex functions and other domains of mathematics. These generalizations will also be beneficial for researchers working in the fields of mathematical modeling, optimization, and numerical analysis.

Table 1. Comparative analysis between the left and right inequalities for discretization of s in Theorem 5 when $\alpha =1/2$ in Example 1.

s	Left Inequality	Right Inequality
0.1	0.5711	1.3142
0.2	0.5988	1.3232
0.3	0.6299	1.3346
0.4	0.6616	1.3485
0.5	0.6948	1.3651
0.6	0.7297	1.3844
0.7	0.7664	1.4068
0.8	0.8049	1.4326
0.9	0.8453	1.4620
1	0.8878	1.4958