Results 21 to 30 of about 856,874 (305)
Fixed point and coupled fixed point theorems on b-metric-like spaces [PDF]
Journal of Inequalities and Applications, 2013 Abstract We first introduce the concept of b-metric-like space which generalizes the notions of partial metric space, metric-like space and b-metric space. Then we establish the existence and uniqueness of fixed points in a b-metric-like space as well as in a partially ordered b-metric-like space.
Mohammed A. Alghamdi +2 more
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AIMS 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
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Vector-valued metrics, fixed points and coupled fixed points for nonlinear operators [PDF]
Fixed Point Theory and Applications, 2013 Abstract In this paper, we will present fixed point theorems for singlevalued and multivalued operators in spaces endowed with vector-valued metrics, as well as a Gnana Bhaskar-Lakshmikantham-type theorem for the coupled fixed point problem, associated to a pair of singlevalued operators (satisfying a generalized mixed monotone property) in ...
Gabriela Petruşel +2 more
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Classifying irreducible fixed points of five scalar fields in perturbation theory [PDF]
SciPost 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
Caristi Type Cyclic Contraction and Coupled Fixed Point Results in Bipolar Metric Spaces [PDF]
Sahand Communications in Mathematical Analysis, 2020 In this paper, we establish the existence of common coupled fixed point results for new Caristi type contraction of three covariant mappings in Bipolar metric spaces. Some interesting consequences of our results are achieved.
Gagula Naveen Venkata Kishore +3 more
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α-Coupled Fixed Points and Their Application in Dynamic Programming [PDF]
Abstract and Applied Analysis, 2014 We introduce the definition ofα-coupled fixed point in the space of the bounded functions on a setSand we present a result about the existence and uniqueness of such points. Moreover, as an application of our result, we study the problem of existence and uniqueness of solutions for a class of systems of functional equations arising in dynamic ...
Harjani, J., Rocha, J., Sadarangani, K.
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Advances in Difference Equations, 2020 In this paper, we introduce the concept of coupled type and cyclic coupled type fuzzy cone contraction mappings in fuzzy cone metric spaces. We establish some coupled fixed point results without the mixed monotone property, and also present some coupled ...
Gui-Xiu Chen +6 more
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Coupled fixed point sets with data-dependence and stability [PDF]
Surveys in Mathematics and its Applications, 2022 In this paper we establish a coupled fixed point theorem of a coupled multivalued mapping defined on a complete metric space. In our result we use a new contractive inequality. There are rational terms in the expression of the inequality. The contractive
Binayak S. Choudhury +2 more
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Mathematics, 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
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The Strong Coupling Fixed-Point Revisited [PDF]
Journal of the Physical Society of Japan, 2005 In recent work we have shown that the Fermi liquid aspects of the strong coupling fixed point of the s-d and Anderson models can brought out more clearly by interpreting the fixed point as a renormalized Anderson model, characterized by a renormalized level $\tilde _d$, resonance width, $\tilde $, and interaction $\tilde U$, and a simple prescription
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