Results 11 to 20 of about 4,748 (237)

On Banach fixed point theorems for partial metric spaces [PDF]

open access: yesApplied General Topology, 2005
In this paper we prove several generalizations of the Banach fixed point theorem for partial metric spaces (in the sense of O’Neill) given in, obtaining as a particular case of our results the Banach fixed point theorem of Matthews ([12]), and some well ...
Oscar Valero
doaj   +2 more sources

On a fixed point theorem in Banach algebras with applications

open access: yesApplied Mathematics Letters, 2005
Dans cet article, l'auteur, en partant d'un de ses résultats très connus, présente des théorèmes noveaux de point fixe pour deux opérateurs définis sur un algèbre de Banach et leurs applications très utiles dans la démonstration de l'existence des solutions de quelques equations intégrales non-linéaires.
Dhage, B.C.
openaire   +2 more sources

A Banach fixed point theorem for topological spaces

open access: yes, 1992
The purpose of this paper is to prove a fixed point theorem for Hausdorff first countable topological spaces and to show, that it is really a generalization of the well-known Banach Fixed Point Theorem: Let \(f:(X,d)\to(X,d)\) be a contraction mapping from a complete metric space into itself. Let \(x \in X\). Then the sequence \(\bigl\{ f^{(n)}(x)\bigr\
Kupka, Ivan
openaire   +2 more sources

On a converse to Banach’s Fixed Point Theorem [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
We say that a metric space ( X , d ) (X,d)
openaire   +2 more sources

FIXED POINT AND COMMON FIXED POINT THEOREM FOR MULTIVALUED MAPPINGS FOR BANACH SPACE

open access: yes, 2022
In this Paper we will investigate some fixed point and common fixed point theorem for multivalued mappings of Banach space. We show that an extended form of many Known results taking multivalued mappings and inequities.
Sandhya Singh, Dr. Dhirendra Kumar Singh
core   +1 more source

Some Simultaneous Generalizations of Well-Known Fixed Point Theorems and Their Applications to Fixed Point Theory

open access: yesMathematics, 2018
In this paper, we first establish a new fixed point theorem that generalizes and unifies a number of well-known fixed point results, including the Banach contraction principle, Kannan’s fixed point theorem, Chatterjea fixed point theorem, Du ...
Wei-Shih Du   +2 more
doaj   +1 more source

Fixed points and common points for fundamentally nonexpansive mappings on banach spaces [PDF]

open access: yesJournal of Hyperstructures, 2015
In this paper, we present some fixed point theorems for fundamentally nonexpansive mappings in Banach spaces and give one common fixed point theorem for a commutative family of demiclosed fundamentally nonexpansive mappings on a nonempty weakly compact ...
Moohammad Moosaei
doaj   +1 more source

Fixed Point Theorems for Nonlinear Operators with and without Monotonicity in Partially Ordered Banach Spaces

open access: yesFixed Point Theory and Applications, 2010
We establish two fixed point theorems for nonlinear operators on Banach spaces partially ordered by a cone. The first fixed point theorem is concerned with a class of mixed monotone operators.
Liang Jin, Xiao Ti-Jun, Ding Hui-Sheng
doaj   +2 more sources

A Proposal for Revisiting Banach and Caristi Type Theorems in b-Metric Spaces

open access: yesMathematics, 2019
In this paper, we revisit the renowned fixed point theorems belongs to Caristi and Banach. We propose a new fixed point theorem which is inspired from both Caristi and Banach. We also consider an example to illustrate our result.
Erdal Karapınar   +2 more
doaj   +1 more source

Fixed Point Theorems in Cone Banach Spaces [PDF]

open access: yesFixed Point Theory and Applications, 2009
AbstractIn this manuscript, a class of self-mappings on cone Banach spaces which have at least one fixed point is considered. More precisely, for a closed and convex subset "Equation missing" of a cone Banach space with the norm "Equation missing", if there exist "Equation missing", "Equation missing", "Equation missing" and "Equation missing ...
openaire   +2 more sources

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