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54 Results Found

  • Article
  • Open Access
14 Citations
3,623 Views
14 Pages

Iterated Functions Systems Composed of Generalized θ-Contractions

  • Pasupathi Rajan,
  • María A. Navascués and
  • Arya Kumar Bedabrata Chand

The theory of iterated function systems (IFSs) has been an active area of research on fractals and various types of self-similarity in nature. The basic theoretical work on IFSs has been proposed by Hutchinson. In this paper, we introduce a new gener...

  • Article
  • Open Access
920 Views
21 Pages

Common Attractor for Hutchinson θ-Contractive Operators in Partial Metric Spaces

  • Naila Shabir,
  • Ali Raza,
  • Manuel De la Sen,
  • Mujahid Abbas and
  • Shahbaz Ahmad

This paper investigates the existence of common attractors for generalized θ-Hutchinson operators within the framework of partial metric spaces. Utilizing a finite iterated function system composed of θ-contractive mappings, we establish...

  • Article
  • Open Access
5 Citations
4,258 Views
20 Pages

Best Proximity Point Results for Generalized Θ-Contractions and Application to Matrix Equations

  • Zhenhua Ma,
  • Azhar Hussain,
  • Muhammad Adeel,
  • Nawab Hussain and
  • Ekrem Savas

15 January 2019

In this paper, we introduce the notion of C ´ iri c ´ type α - ψ - Θ -contraction and prove best proximity point results in the context of complete metric spaces. Moreover, we prove some best pro...

  • Article
  • Open Access
3 Citations
1,879 Views
11 Pages

15 June 2022

The aim of this paper is to introduce the notion of Perov–Ćirić–Prešić-type Θ-contractions and to obtain some generalized fixed point theorems in the setting of vector-valued metric spaces. We derive some fixed...

  • Article
  • Open Access
1 Citations
1,581 Views
13 Pages

Fixed Point Results for Generalized

  • Umar Ishtiaq,
  • Fahim Ud Din,
  • Khaleel Ahmad,
  • Doha A. Kattan and
  • Ioannis K. Argyros

Any two points are close together in a θ-contraction by a factor of θ. The function Δ is implied to be a contraction under this condition, but with a tighter bound on the contraction factor. In this paper, we introduce the notions of orthogonal θ-con...

  • Article
  • Open Access
38 Citations
3,277 Views
21 Pages

Coincidence Point Results for Multivalued Suzuki Type Mappings Using θ-Contraction in b-Metric Spaces

  • Naeem Saleem,
  • Jelena Vujaković,
  • Wali Ullah Baloch and
  • Stojan Radenović

25 October 2019

In this paper, we introduce the concept of coincidence best proximity point for multivalued Suzuki-type α -admissible mapping using θ -contraction in b-metric space. Some examples are presented here to understand the use of the...

  • Article
  • Open Access
9 Citations
1,895 Views
14 Pages

This research article aims to solve a nonlinear fractional differential equation by fixed point theorems in orthogonal metric spaces. To achieve our goal, we define an orthogonal Θ-contraction and orthogonal (α,Θ)-contraction in the...

  • Article
  • Open Access
7 Citations
1,760 Views
16 Pages

29 October 2022

In this study, we utilize the notion of triple controlled metric type space that preserves the symmetry property, which is a generalization of b-metric-type spaces, to prove new fixed-point results. We introduce (α-F)-contractive mappings and &...

  • Article
  • Open Access
2,165 Views
14 Pages

New Fixed Point Results via (θ,ψ)R-Weak Contractions with an Application

  • Mohammad Imdad,
  • Based Ali,
  • Waleed M. Alfaqih,
  • Salvatore Sessa and
  • Abdullah Aldurayhim

30 May 2020

In this paper, inspired by Jleli and Samet (Journal of Inequalities and Applications 38 (2014) 1–8), we introduce two new classes of auxiliary functions and utilize the same to define ( θ , ψ ) R -weak contractions. Utilizing...

  • Article
  • Open Access
3 Citations
2,313 Views
13 Pages

31 August 2021

In this paper, the notion of θ*-weak contraction is introduced, which is utilized to prove some fixed point results. These results are helpful to give a positive response to certain open question raised by Kannan and Rhoades on the existence of contr...

  • Article
  • Open Access
4 Citations
1,932 Views
15 Pages

11 July 2023

Fixed point theory is a versatile mathematical theory that finds applications in a wide range of disciplines, including computer science, engineering, fractals, and even behavioral sciences. In this study, we propose triple controlled metric-like spa...

  • Article
  • Open Access
22 Citations
3,352 Views
11 Pages

Relation Theoretic (Θ,R) Contraction Results with Applications to Nonlinear Matrix Equations

  • Hamed H. Al-Sulami,
  • Jamshaid Ahmad,
  • Nawab Hussain and
  • Abdul Latif

18 December 2018

Using the concept of binary relation R , we initiate a notion of Θ R -contraction and obtain some fixed point results for such mappings in the setting of complete metric spaces. Furthermore, we establish some new results of fixed...

  • Article
  • Open Access
9 Citations
2,591 Views
17 Pages

In this article, we introduce a relatively new concept of multi-valued ( θ , R ) -contractions and utilize the same to prove some fixed point results for a special class of multi-valued mappings in metric spaces endowed with an amorphous...

  • Article
  • Open Access
3 Citations
1,758 Views
24 Pages

5 January 2023

The purpose of this paper is to present some new contraction mappings via control functions. In addition, some fixed point results for Θ,α,θ,Ψ contraction, rational Θ,α,θ,Ψ contraction and almost Θ,&a...

  • Article
  • Open Access
8 Citations
1,126 Views
29 Pages

11 August 2023

The objective of this research paper is to establish the existence and uniqueness of the best proximity and coincidence with best proximity point results, specifically focusing on Geraghty–Pata–Suzuki-type proximal mappings. To achieve th...

  • Article
  • Open Access
196 Citations
6,022 Views
18 Pages

18 May 2019

The present paper aims to define three new notions: Θ e -contraction, a Hardy–Rogers-type Θ -contraction, and an interpolative Θ -contraction in the framework of extended b-metric space. Further, some fixed po...

  • Article
  • Open Access
488 Views
24 Pages

A Novel Approach to Some Proximal Contractions with Examples of Its Application

  • Muhammad Zahid,
  • Fahim Ud Din,
  • Luminiţa-Ioana Cotîrlă and
  • Daniel Breaz

19 May 2025

In this article, we will introduce a new generalized proximal θ-contraction for multivalued and single-valued mappings named (f−θκ)CP-proximal contraction and (f−θκ)BP-proximal contraction. Using these newly...

  • Article
  • Open Access
31 Citations
2,600 Views
21 Pages

Solving a Fractional-Order Differential Equation Using Rational Symmetric Contraction Mappings

  • Hasanen A. Hammad,
  • Praveen Agarwal,
  • Shaher Momani and
  • Fahad Alsharari

The intent of this manuscript is to present new rational symmetric ϖ−ξ-contractions and infer some fixed-points for such contractions in the setting of Θ-metric spaces. Furthermore, some related results such as Suzuki-type rational symmetric contract...

  • Article
  • Open Access
3 Citations
1,153 Views
18 Pages

17 October 2023

The aim of this article is to investigate the relationship between integral-type contractions and the generalized dynamic process. The fixed-point results for multivalued mappings that satisfy both the integral Khan-type contraction and the integral...

  • Article
  • Open Access
5 Citations
1,925 Views
19 Pages

Solutions to Fredholm Integral Inclusions via Generalized Fuzzy Contractions

  • Hamed H Al-Sulami,
  • Jamshaid Ahmad,
  • Nawab Hussain and
  • Abdul Latif

2 September 2019

The aim of this study is to investigate the existence of solutions for the following Fredholm integral inclusion φ ( t ) ∈ f ( t ) + ∫ 0 1 K ( t , s , φ ( s ) ) ϱ s for t ∈ [ 0 , 1 ] , where f...

  • Article
  • Open Access
9 Citations
1,186 Views
15 Pages

25 April 2024

This paper combines the concept of an arbitrary binary connection with the widely recognized principle of θ-contraction to investigate the innovative features of vector-valued metric spaces. This methodology demonstrates the existence of fixed...

  • Article
  • Open Access
7 Citations
2,406 Views
11 Pages

Some New Fixed Point Theorems in b-Metric Spaces with Application

  • Badriah A. S. Alamri,
  • Ravi P. Agarwal and
  • Jamshaid Ahmad

The aim of this article is to introduce a new class of contraction-like mappings, called the almost multivalued ( Θ , δ b )-contraction mappings in the setting of b-metric spaces to obtain some generalized fixed point theorems. As...

  • Article
  • Open Access
14 Citations
2,234 Views
15 Pages

The aim of this research is to introduce two new notions, Θ-(Ξ,h)-contraction and rational (α,η)-ψ-interpolative contraction, in the setting of F-metric space and to establish corresponding fixed point theorems. To reinforce un...

  • Article
  • Open Access
5 Citations
1,772 Views
23 Pages

13 November 2022

In this paper, we present extensions of some classic results regarding the existence and uniqueness of fixed points of operators fulfilling generalized contractive conditions defined by sums involving some functions with suitable properties in the se...

  • Article
  • Open Access
1,866 Views
17 Pages

The purpose of this study is to explore the existence and uniqueness of the best proximity points for α,Θ-proximal contractions, a novel concept introduced in the context of F-metric spaces. Moreover, we provide an example to show the usa...

  • Article
  • Open Access
1 Citations
2,203 Views
16 Pages

Caristi, Nadler and H + -Type Contractive Mappings and Their Fixed Points in θ-Metric Spaces

  • Pradip Patle,
  • Jelena Vujaković,
  • Deepesh Patel and
  • Stojan Radenović

7 April 2019

A new proper generalization of metric called as θ -metric is introduced by Khojasteh et al. (Mathematical Problems in Engineering (2013) Article ID 504609). In this paper, first we prove the Caristi type fixed point theorem in an alternati...

  • Article
  • Open Access
3 Citations
2,480 Views
14 Pages

21 August 2019

In this paper, we establish generalized Suzuki-simulation-type contractive mapping and prove fixed point theorems on non-Archimedean quasi modular metric spaces. As an application, we acquire graphic-type results.

  • Article
  • Open Access
15 Citations
2,460 Views
10 Pages

A New Fixed Point Result of Perov Type and Its Application to a Semilinear Operator System

  • Ishak Altun,
  • Nawab Hussain,
  • Muhammad Qasim and
  • Hamed H. Al-Sulami

28 October 2019

In this paper, we present a new generalization of the Perov fixed point theorem on vector-valued metric space. Moreover, to show the significance of our result, we present both a nontrivial comparative example and an application to a kind of semiline...

  • Article
  • Open Access
1 Citations
994 Views
24 Pages

The axial-flow pump system has been widely applied to coastal drainage pump stations, but the hydraulic performance optimization based on the contraction angles of the inlet passage has not been studied. This paper combined the computational fluid dy...

  • Article
  • Open Access
2 Citations
2,448 Views
82 Pages

C-R Immersions and Sub-Riemannian Geometry

  • Elisabetta Barletta,
  • Sorin Dragomir and
  • Francesco Esposito

28 March 2023

On any strictly pseudoconvex CR manifold M, of CR dimension n, equipped with a positively oriented contact form θ, we consider natural ϵ-contractions, i.e., contractions gϵM of the Levi form Gθ, such that the norm of the Reeb...

  • Article
  • Open Access
1,136 Views
14 Pages

Convergence of Graph-Based Fixed Point Results with Application to Fredholm Integral Equation

  • Haroon Ahmad,
  • Aqsa Riaz,
  • Mahpeyker Öztürk,
  • Fahim Ud Din,
  • Mehmet Emir Köksal and
  • Ekber Girgin

15 October 2024

In this manuscript, we present a novel concept termed graphical Θc-Kannan contraction within the context of graphically controlled metric-type spaces. Unlike traditional Kannan contraction, this novel concept presents a modified method of contr...

  • Article
  • Open Access
1 Citations
1,824 Views
16 Pages

20 April 2023

The contraction/expansion laminar flow containing rodlike particles in power-law fluid is studied numerically when the particles are in a dilute phase. The fluid velocity vector and streamline of flow are given at the finite Reynolds number (Re) regi...

  • Article
  • Open Access
1,110 Views
10 Pages

In this short note, we consider fractal interpolation in the Banach space Vθ(I) of convex Lipschitz functions defined on a compact interval I⊂R. To this end, we define an appropriate iterated function system and exhibit the associated Read&...

  • Article
  • Open Access
2 Citations
2,037 Views
23 Pages

Best Proximity Point Results for Multi-Valued Mappings in Generalized Metric Structure

  • Asad Ullah Khan,
  • Maria Samreen,
  • Aftab Hussain and
  • Hamed Al Sulami

21 April 2024

In this paper, we introduce the novel concept of generalized distance denoted as Jθ and call it an extended b-generalized pseudo-distance. With the help of this generalized distance, we define a generalized point to set distance Jθ(u,H ...

  • Article
  • Open Access
15 Citations
2,048 Views
13 Pages

Fixed Circle and Fixed Disc Results for New Types of Θc-Contractive Mappings in Metric Spaces

  • Hayel N. Saleh,
  • Salvatore Sessa,
  • Waleed M. Alfaqih,
  • Mohammad Imdad and
  • Nabil Mlaiki

4 November 2020

In this manuscript, we introduce the notions of various types of Θc-contractions for which we establish some fixed circle and fixed disc theorems in the setting of metric spaces. Some illustrative examples are also provided to support our resul...

  • Article
  • Open Access
15 Citations
3,507 Views
13 Pages

On Fixed Point Results for Modified JS-Contractions with Applications

  • Vahid Parvaneh,
  • Nawab Hussain,
  • Aiman Mukheimer and
  • Hassen Aydi

24 July 2019

In [Fixed Point Theory Appl., 2015 (2015):185], the authors introduced a new concept of modified contractive mappings, generalizing Ćirić, Chatterjea, Kannan, and Reich type contractions. They applied the condition ( θ 4 ) (see page 3...

  • Article
  • Open Access
9 Citations
2,223 Views
20 Pages

Best Proximity Results with Applications to Nonlinear Dynamical Systems

  • Hamed H Al-Sulami,
  • Nawab Hussain and
  • Jamshaid Ahmad

26 September 2019

Best proximity point theorem furnishes sufficient conditions for the existence and computation of an approximate solution ω that is optimal in the sense that the error σ ( ω , J ω ) assumes the global minimum val...

  • Article
  • Open Access
1 Citations
558 Views
9 Pages

29 October 2018

The dimensions of many water streams, which satisfy proper hydraulic conditions, may not be compatible with the designed dimensions of an irrigation work that needs to be constructed in some locations. The design requirements of such irrigation works...

  • Article
  • Open Access
2,801 Views
14 Pages

Generalized (σ,ξ)-Contractions and Related Fixed Point Results in a P.M.S

  • Vahid Parvaneh,
  • Babak Mohammadi,
  • Hassen Aydi and
  • Aiman Mukheimer

In this paper, we present the concept of Θ − ( σ , ξ ) Ω -contraction mappings and we nominate some related fixed point results in ordered p-metric spaces. Our results extend several famous ones in the literature...

  • Article
  • Open Access
2 Citations
826 Views
20 Pages

In this study, we introduce two new classes of contractions, namely enriched (I,ρ,χ)-contractions and generalized enriched (I,ρ,χ)-contractions, within the context of normed spaces. These classes generalize several well-known contract...

  • Article
  • Open Access
6 Citations
1,633 Views
12 Pages

9 December 2022

This article includes some fixed point results for (φ,ψ,θ)-contractions in the context of metric space endowed with a locally H-transitive relation. We constructed an example for attesting to the credibility of our results. We also discussed the exis...

  • Article
  • Open Access
13 Citations
2,759 Views
11 Pages

Existence of Solutions for a System of Integral Equations Using a Generalization of Darbo’s Fixed Point Theorem

  • Babak Mohammadi,
  • Ali Asghar Shole Haghighi,
  • Maryam Khorshidi,
  • Manuel De la Sen and
  • Vahid Parvaneh

1 April 2020

In this paper, an extension of Darbo’s fixed point theorem via θ -F-contractions in a Banach space has been presented. Measure of noncompactness approach is the main tool in the presentation of our proofs. As an application, we study...

  • Article
  • Open Access
3 Citations
1,256 Views
24 Pages

This paper is inspired by cutting-edge advancements in chaos theory, fractional calculus, and fixed point theory, which together provide a powerful framework for examining the dynamics of complex systems. At the heart of our research is the fractiona...

  • Article
  • Open Access
3 Citations
1,414 Views
12 Pages

13 January 2024

We introduce the new idea of (α−θσ)-contraction in quasi-metric spaces in this paper. For these kinds of mappings, we then prove new fixed-point theorems on left K, left M, and left Smyth-complete quasi-metric spaces. We also...

  • Article
  • Open Access
2 Citations
4,036 Views
20 Pages

In this paper, we introduce the new notion of Suzuki-type ( α , β , θ , γ ) -contractive mapping and investigate the existence and uniqueness of the best proximity point for such mappings in non-Archimedean modular metric space using the weak...

  • Article
  • Open Access
2 Citations
4,095 Views
11 Pages

28 September 2018

The use of flaring gate piers (FGPs) along with finite crest-length weirs changes the shape of plunging jets and increases the efficiency of energy dissipation in some projects; however, the FGPs may affect the discharge capacity. In this study, the...

  • Article
  • Open Access
346 Views
15 Pages

24 October 2025

After the introduction of the relation-theoretic contraction principle, the branch of metric fixed-point theory has attracted much attention in this direction, and various fixed-point results have been proven in the framework of relational metric spa...

  • Article
  • Open Access
7 Citations
3,029 Views
16 Pages

Development and Validation of a New Calibration Model for Diviner 2000® Probe Based on Soil Physical Attributes

  • Giuseppe Provenzano,
  • Giovanni Rallo,
  • Ceres Duarte Guedes Cabral de Almeida and
  • Brivaldo Gomes de Almeida

4 December 2020

This study aimed to develop a new model, valid for soil with and without expandable characters, to estimate volumetric soil water content (θ) from readings of scaled frequency (SF) acquired with the Diviner 2000® sensor. The analysis was ca...

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