Results 21 to 30 of about 2,303,991 (326)

Coupled Fixed Point Theorems for Some Type of Contraction Mappings in b -Cone and b -Theta Cone Metric Spaces

open access: yes, 2021
This paper proves the existence of a unique coupled fixed point of some type of contraction mappings defined on a complete - cone and - theta cone metric spaces; consequently, it extends and generalizes many previous coupled fixed point theorems.
Sahar Mohamed Ali Abou Bakr
semanticscholar   +1 more source

Coupled fixed point and best proximity point results involving simulation functions

open access: yesBoletim da Sociedade Paranaense de Matemática, 2022
The purpose of this paper is to prove coupled fixed point theorems using simulation functions that extend the results of Kojasteh et al . As an application we prove a coupled best proximity points using simulation functions.  
Dhivya Pari   +3 more
doaj   +1 more source

Asymptotic freedom in Horava-Lifshitz gravity [PDF]

open access: yes, 2014
We use the Wetterich equation for foliated spacetimes to study the RG flow of projectable Horava-Lifshitz gravity coupled to n Lifshitz scalars. Using novel results for anisotropic heat kernels, the matter-induced beta functions for the gravitational ...
D'Odorico, Giulio   +2 more
core   +7 more sources

Coupled common best proximity point theorems for nonlinear contractions in partially ordered metric spaces

open access: yesAIMS Mathematics, 2020
In this paper, we first introduce the concept of mixed γ-proximally monotone property type mappings and investigate the existence of the coupled proximally coincidence point for such mappings in partially ordered complete metric spaces.
Raju Gopi   +3 more
doaj   +1 more source

Classifying irreducible fixed points of five scalar fields in perturbation theory [PDF]

open access: yesSciPost Phys. 16, 040 (2024), 2023
Classifying perturbative fixed points near upper critical dimensions plays an important role in understanding the space of conformal field theories and critical phases of matter. In this work, we consider perturbative fixed points of $N=5$ scalar bosons coupled with quartic interactions preserving an arbitrary subgroup $G\subset {\rm O}(5)$. We perform
arxiv   +1 more source

Fractional Hybrid Differential Equations and Coupled Fixed-Point Results for α -Admissible F ψ

open access: yesDiscrete Dynamics in Nature and Society, 2020
In this paper, we investigate the existence of a unique coupled fixed point for α − admissible mapping which is of
E. Karapınar   +3 more
semanticscholar   +1 more source

Emergent strongly coupled ultraviolet fixed point in four dimensions with eight Kähler-Dirac fermions [PDF]

open access: yesPhysical Review D, 2022
The existence of a strongly coupled ultraviolet fixed point in 4-dimensional lattice models as they cross into the conformal window has long been hypothesized. The SU(3) gauge system with 8 fundamental fermions is a good candidate to study this phenomenon
A. Hasenfratz
semanticscholar   +1 more source

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

open access: yesMathematics, 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.
Babak Mohammadi   +4 more
doaj   +1 more source

On $ \mathcal{A B C} $ coupled Langevin fractional differential equations constrained by Perov's fixed point in generalized Banach spaces

open access: yesAIMS Mathematics, 2023
Nonlinear differential equations are widely used in everyday scientific and engineering dynamics. Problems involving differential equations of fractional order with initial and phase changes are often employed.
Abdelatif Boutiara   +4 more
semanticscholar   +1 more source

Fixed point theorems for generalized weakly contractive mappings in metric spaces with applications

open access: yesFixed Point Theory and Applications, 2018
In this paper, motivated and inspired by Samet et al., we introduce the notion of generalized weakly contractive mappings in metric spaces and prove the existence and uniqueness of fixed point for such mappings, and we obtain a coupled fixed point ...
Seonghoon Cho
doaj   +1 more source

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