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47 Results Found

  • Article
  • Open Access
6 Citations
3,479 Views
14 Pages

18 April 2020

The main purpose of this investigation is to use quantum calculus approach and obtain the Bohr radius for the class of q-starlike (q-convex) functions of order α . The Bohr radius is also determined for a generalized class of q-Janowski st...

  • Article
  • Open Access
8 Citations
2,999 Views
10 Pages

An Application of Sălăgean Operator Concerning Starlike Functions

  • Hatun Özlem Güney,
  • Georgia Irina Oros and
  • Shigeyoshi Owa

27 January 2022

As an application of the well-known Sălăgean differential operator, a new operator is introduced and, using this, a new class of functions Sn(α) is defined, which has the classes of starlike and convex functions of order α as sp...

  • Article
  • Open Access
9 Citations
2,659 Views
9 Pages

Simple Sufficient Subordination Conditions for Close-to-Convexity

  • Ebrahim Analouei Adegani,
  • Teodor Bulboacă and
  • Ahmad Motamednezhad

7 March 2019

Using several applications of the theory of differential subordination we obtain sufficient conditions for usually normalized analytic functions to belong to certain subclasses of close-to-convex functions and close-to-convex functions of order &a...

  • Article
  • Open Access
3 Citations
1,692 Views
9 Pages

26 December 2022

This paper examines two subclasses of multivalent analytic functions defined with higher-order derivatives. These classes of functions are generalizations of several known subclasses that have been studied in separate works. Moreover, we find several...

  • Article
  • Open Access
2 Citations
1,745 Views
16 Pages

Some Properties for Subordinations of Analytic Functions

  • Hatun Özlem Güney,
  • Daniel Breaz and
  • Shigeyoshi Owa

28 January 2023

Let the class of functions of f(z) of the form f(z)=z+∑k=2∞akzk, which are denoted by A and called analytic functions in the open-unit disk. There are many interesting properties of the functions f(z) in the class A concerning the subordina...

  • Article
  • Open Access
1 Citations
1,188 Views
12 Pages

7 February 2024

Let A¯ be the new general class of functions f(z) of the form f(z)=z+∑k=1∞a1+k2z1+k2 that are analytic in the open unit disc U. In the present paper, for f(z)∈A¯, we consider classes S∗¯(α), C¯(&al...

  • Article
  • Open Access
1,078 Views
29 Pages

In this paper, we propose a non-convex model with fractional-order applied to image deblurring problems. In the new model, fractional-order gradients have been introduced to preserve detailed features, and a source term with a blurry kernel is used f...

  • Article
  • Open Access
3 Citations
2,333 Views
7 Pages

16 July 2021

Sharp lower and upper bounds of the second- and third-order Hermitian Toeplitz determinants for the class of α-convex functions were found. The symmetry properties of the arithmetic mean underlying the definition of α-convexity and the symmetry prope...

  • Article
  • Open Access
4 Citations
2,188 Views
12 Pages

Second Hankel Determinant for a Certain Subclass of Bi-Close to Convex Functions Defined by Kaplan

  • Stanislawa Kanas,
  • Pesse V. Sivasankari,
  • Roy Karthiyayini and
  • Srikandan Sivasubramanian

29 March 2021

In this paper, we consider the class of strongly bi-close-to-convex functions of order α and bi-close-to-convex functions of order β. We obtain an upper bound estimate for the second Hankel determinant for functions belonging to these classes. The re...

  • Article
  • Open Access
6 Citations
1,647 Views
25 Pages

Hermite–Hadamard-Type Inequalities for Harmonically Convex Functions via Proportional Caputo-Hybrid Operators with Applications

  • Saad Ihsan Butt,
  • Muhammad Umar,
  • Dawood Khan,
  • Youngsoo Seol and
  • Sanja Tipurić-Spužević

In this paper, we aim to establish new inequalities of Hermite–Hadamard (H.H) type for harmonically convex functions using proportional Caputo-Hybrid (P.C.H) fractional operators. Parameterized by α, these operators offer a unique fl...

  • Article
  • Open Access
4 Citations
2,580 Views
13 Pages

New Criteria for Meromorphic Starlikeness and Close-to-Convexity

  • Ali Ebadian,
  • Nak Eun Cho,
  • Ebrahim Analouei Adegani and
  • Sibel Yalçın

The main purpose of current paper is to obtain some new criteria for meromorphic strongly starlike functions of order α and strongly close-to-convexity of order α . Furthermore, the main results presented here are compared with...

  • Article
  • Open Access
1 Citations
1,675 Views
19 Pages

Fractional Differential Operator Based on Quantum Calculus and Bi-Close-to-Convex Functions

  • Zeya Jia,
  • Alina Alb Lupaş,
  • Haifa Bin Jebreen,
  • Georgia Irina Oros,
  • Teodor Bulboacă and
  • Qazi Zahoor Ahmad

29 June 2024

In this article, we first consider the fractional q-differential operator and the λ,q-fractional differintegral operator Dqλ:A→A. Using the λ,q-fractional differintegral operator, we define two new subclasses of analytic fun...

  • Article
  • Open Access
14 Citations
2,351 Views
24 Pages

New Class Up and Down λ-Convex Fuzzy-Number Valued Mappings and Related Fuzzy Fractional Inequalities

  • Muhammad Bilal Khan,
  • Hatim Ghazi Zaini,
  • Gustavo Santos-García,
  • Muhammad Aslam Noor and
  • Mohamed S. Soliman

The fuzzy-number valued up and down λ-convex mapping is originally proposed as an intriguing generalization of the convex mappings. The newly suggested mappings are then used to create certain Hermite–Hadamard- and Pachpatte-type integra...

  • Article
  • Open Access
16 Citations
2,289 Views
23 Pages

On Starlike Functions of Negative Order Defined by q-Fractional Derivative

  • Sadia Riaz,
  • Ubaid Ahmed Nisar,
  • Qin Xin,
  • Sarfraz Nawaz Malik and
  • Abdul Raheem

In this paper, two new classes of q-starlike functions in an open unit disc are defined and studied by using the q-fractional derivative. The class Sq*˜(α), α∈(−3,1], q∈(0,1) generalizes the class Sq* of q-starlike f...

  • Article
  • Open Access
1,870 Views
12 Pages

Properties of Functions Formed Using the Sakaguchi and Gao-Zhou Concept

  • Jonathan Aaron Azlan Mosiun and
  • Suzeini Abdul Halim

27 February 2020

This paper introduces a new class related to close-to-convex functions denoted by K s k , N . This class is based on combining the concepts of starlike functions with respect to N-ply symmetry points of the order α , introduced by...

  • Article
  • Open Access
8 Citations
1,744 Views
20 Pages

29 December 2023

The objective of the present article is to introduce new subclasses of bi-Bazilevič functions, bi-quasi-convex functions and α-exponentially bi-convex functions involving functions with bounded boundary rotation of order ν. For the abov...

  • Article
  • Open Access
10 Citations
1,949 Views
19 Pages

4 June 2023

The potential for widespread applications of the geometric and mapping properties of functions of a complex variable has motivated this article. On the other hand, the basic or quantum (or q-) derivatives and the basic or quantum (or q-) integrals ar...

  • Article
  • Open Access
7 Citations
1,852 Views
12 Pages

22 May 2021

The problem of conflict interaction between a group of pursuers and an evader in a finite-dimensional Euclidean space is considered. All participants have equal opportunities. The dynamics of all players are described by a system of differential equa...

  • Article
  • Open Access
1,007 Views
12 Pages

25 October 2024

In this article, the strong class of bi-close-to-convex functions of order α and β in n-fold symmetric bi-univalent functions, which is the subclass of σ, is introduced. The upper bound value for an+1, a2n+1 for functions in these cl...

  • Article
  • Open Access
5 Citations
2,578 Views
20 Pages

3 April 2019

A crucial issue in applying the ordered weighted averaging (OWA) operator for decision making is the determination of the associated weights. This paper proposes a general least convex deviation model for OWA operators which attempts to obtain the de...

  • Article
  • Open Access
4 Citations
2,669 Views
15 Pages

Integral operators of a fractional order containing the Mittag-Leffler function are important generalizations of classical Riemann–Liouville integrals. The inequalities that are extensively studied for fractional integral operators are the Hada...

  • Article
  • Open Access
17 Citations
2,247 Views
19 Pages

3 August 2022

The main purpose of this paper is to define a new family of Szász–Mirakyan operators that depends on a non-negative parameter, say α. This new family of Szász–Mirakyan operators is crucial in that it includes both the...

  • Article
  • Open Access
1 Citations
3,963 Views
17 Pages

1 August 2018

The casing of deformable warheads warps under the action of deforming charges. The deformation profiles may be concave-, convex-, or D-shaped, but they are all symmetrical. The D-shape is considered the optimal deformation profile. The width of the d...

  • Article
  • Open Access
677 Views
19 Pages

A Study on Rough Ideal Statistical Convergence in Neutrosophic Normed Spaces

  • Paul Sebastian Jenifer,
  • Mathuraiveeran Jeyaraman,
  • Saeid Jafari and
  • Alexander Pigazzini

28 August 2025

In this paper, we introduce and study the concept of rough I–αβ–statistical convergence of order γ in neutrosophic normed spaces. This new mode of convergence combines the principles of rough convergence, statistical conv...

  • Article
  • Open Access
5 Citations
2,262 Views
21 Pages

Starlike Functions Associated with Secant Hyperbolic Function

  • Khadija Bano,
  • Mohsan Raza,
  • Qin Xin,
  • Fairouz Tchier and
  • Sarfraz Nawaz Malik

16 March 2023

Motivated by the recent work on the symmetric domains, this article investigates certain features of symmetric domain which are caused by the secant hyperbolic functions. Geometric characteristics of analytic functions associated with secant hyperbol...

  • Feature Paper
  • Article
  • Open Access
6 Citations
2,560 Views
24 Pages

A Unifying Generator Loss Function for Generative Adversarial Networks

  • Justin Veiner,
  • Fady Alajaji and
  • Bahman Gharesifard

27 March 2024

A unifying α-parametrized generator loss function is introduced for a dual-objective generative adversarial network (GAN) that uses a canonical (or classical) discriminator loss function such as the one in the original GAN (VanillaGAN) system....

  • Article
  • Open Access
1 Citations
1,447 Views
13 Pages

New Criteria for Convex-Exponent Product of Log-Harmonic Functions

  • Rasoul Aghalary,
  • Ali Ebadian,
  • Nak Eun Cho and
  • Mehri Alizadeh

22 April 2023

In this study, we consider different types of convex-exponent products of elements of a certain class of log-harmonic mapping and then find sufficient conditions for them to be starlike log-harmonic functions. For instance, we show that, if f is a sp...

  • Article
  • Open Access
13 Citations
1,170 Views
14 Pages

6 September 2023

This paper investigates the existence and convergence of solutions for linear and nonlinear matrix equations. This study explores the potential of convex (α,β)-generalized contraction mappings in geodesic spaces, ensuring the existence of...

  • Article
  • Open Access
14 Citations
2,552 Views
17 Pages

11 February 2023

The reasonable design of biomimetic non-smooth surfaces is a novel and effective way to solve problems such as the poor lubricity and serious friction and wear of friction pairs of seawater axial piston pumps. Inspired by cross-scale, second-order co...

  • Article
  • Open Access
7 Citations
2,035 Views
17 Pages

The results contained in this paper are the result of a study regarding fractional calculus combined with the classical theory of differential subordination established for analytic complex valued functions. A new operator is introduced by applying t...

  • Feature Paper
  • Article
  • Open Access
1,166 Views
19 Pages

25 July 2023

In this study, we use an extension of Yang’s convergence criterion [N. Jiang, On the wavewise entropy inequality for high-resolution schemes with source terms II: the fully discrete case] to show the entropy convergence of a class of fully disc...

  • Article
  • Open Access
1 Citations
2,189 Views
14 Pages

16 February 2023

This paper is devoted to investigating the existence of solutions for the fractional differential equation and fractional differential inclusion of order α∈(2,3] with affine periodic boundary value conditions. Applying the Leray–Scha...

  • Article
  • Open Access
6 Citations
2,568 Views
19 Pages

A Quicker Iteration Method for Approximating the Fixed Point of Generalized α-Reich-Suzuki Nonexpansive Mappings with Applications

  • Danish Ali,
  • Shahbaz Ali,
  • Darab Pompei-Cosmin,
  • Turcu Antoniu,
  • Abdullah A. Zaagan and
  • Ali M. Mahnashi

Fixed point theory is a branch of mathematics that studies solutions that remain unchanged under a given transformation or operator, and it has numerous applications in fields such as mathematics, economics, computer science, engineering, and physics...

  • Article
  • Open Access
16 Citations
2,189 Views
16 Pages

Applications of Symmetric Quantum Calculus to the Class of Harmonic Functions

  • Mohammad Faisal Khan,
  • Isra Al-Shbeil,
  • Najla Aloraini,
  • Nazar Khan and
  • Shahid Khan

18 October 2022

In the past few years, many scholars gave much attention to the use of q-calculus in geometric functions theory, and they defined new subclasses of analytic and harmonic functions. While using the symmetric q-calculus in geometric function theory, ve...

  • Review
  • Open Access
7 Citations
3,159 Views
40 Pages

Generalized Beta Models and Population Growth: So Many Routes to Chaos

  • M. Fátima Brilhante,
  • M. Ivette Gomes,
  • Sandra Mendonça,
  • Dinis Pestana and
  • Pedro Pestana

Logistic and Gompertz growth equations are the usual choice to model sustainable growth and immoderate growth causing depletion of resources, respectively. Observing that the logistic distribution is geo-max-stable and the Gompertz function is propor...

  • Article
  • Open Access
308 Views
17 Pages

2 November 2025

This study introduces a new integral operator Ip,μδ that extends the traditional Rafid operator to meromorphic p-valent functions. Using this operator, we define and investigate two new subclasses: Σp+δ,μ,α, consisting o...

  • Article
  • Open Access
5 Citations
1,529 Views
12 Pages

Study on the Criteria for Starlikeness in Integral Operators Involving Bessel Functions

  • Georgia Irina Oros,
  • Gheorghe Oros and
  • Daniela Andrada Bardac-Vlada

26 October 2023

The study presented in this paper follows a line of research familiar for Geometric Function Theory, which consists in defining new integral operators and conducting studies for revealing certain geometric properties of those integral operators such...

  • Article
  • Open Access
11 Citations
1,662 Views
16 Pages

New Variants of Quantum Midpoint-Type Inequalities

  • Saad Ihsan Butt,
  • Hüseyin Budak and
  • Kamsing Nonlaopon

8 December 2022

Recently, there has been a strong push toward creating and expanding quadrature inequalities in quantum calculus. In order to investigate various avenues for quantum inquiry, a number of quantum extensions of midpoint estimations are studied. The goa...

  • Article
  • Open Access
21 Citations
4,902 Views
13 Pages

15 May 2018

In this paper, a joint non-orthogonal multiple access and time division multiple access (NOMA-TDMA) scheme is proposed in Industrial Internet of Things (IIoT), which allowed multiple sensors to transmit in the same time-frequency resource block using...

  • Article
  • Open Access
4 Citations
1,873 Views
24 Pages

Design and Testing of Soybean Double-Row Seed-Metering Device with Double-Beveled Seed Guide Groove

  • Huajiang Zhu,
  • Sihao Zhang,
  • Wenjun Wang,
  • Hongqian Lv,
  • Yulong Chen,
  • Long Zhou,
  • Mingwei Li and
  • Jinhui Zhao

13 September 2024

During the operation of a shaped hole seed-metering device, poor seed-filling quality and inconsistent seed-casting points lead to poor seed spacing uniformity, especially in a one-chamber double-row seed-metering device. To solve this problem, a soy...

  • Article
  • Open Access
2 Citations
3,114 Views
19 Pages

13 August 2020

With the upcoming fifth Industrial Revolution, humans and collaborative robots will dance together in production. They themselves act as an agent in a connected world, understood as a multi-agent system, in which the Laplacian spectrum plays an impor...

  • Article
  • Open Access
1 Citations
2,676 Views
32 Pages

11 July 2025

We develop a symmetry-based variational theory that shows the coarse-grained balance of work inflow to heat outflow in a driven, dissipative system relaxed to the golden ratio. Two order-2 Möbius transformations—a self-dual flip and a self...