Results 91 to 100 of about 5,641 (184)

On some fixed point results for (s, p, α)-contractive mappings in b-metric-like spaces and applications to integral equations

open access: yesOpen Mathematics, 2018
In this work, we introduce the notions of (s, p, α)-quasi-contractions and (s, p)-weak contractions and deduce some fixed point results concerning such contractions, in the setting of b-metric-like spaces.
Zoto Kastriot   +2 more
doaj   +1 more source

Comparison Function and Boyd–Wong–Type Contractions in Kaleva–Seikkala’s Type Fuzzy b‐Metric Space

open access: yesJournal of Function Spaces, Volume 2025, Issue 1, 2025.
In this article, we study the existence and uniqueness of fixed points for mappings in Kaleva–Seikkala’s type fuzzy b‐metric spaces. Nonlinear contractions of the comparison function and Boyd–Wong’s type are considered, and several new fixed point theorems for these contractions in complete Kaleva‐Seikkala’s type fuzzy b‐metric spaces are presented. It
Jiaojiao Wu   +4 more
wiley   +1 more source

Composite iterative schemes for maximal monotone operators in reflexive Banach spaces

open access: yesFixed Point Theory and Applications, 2011
In this article, we introduce composite iterative schemes for finding a zero point of a finite family of maximal monotone operators in a reflexive Banach space. Then, we prove strong convergence theorems by using a shrinking projection method.
Cho Yeol   +2 more
doaj  

Fixed points for generalized (α,ψ)-contractions on generalized metric spaces

open access: yes, 2014
In this paper, we introduce some generalized (α,ψ)-contractive mappings in the setting of generalized metric spaces and, based on the very recent paper (Kirk and Shahzad in Fixed Point Theory Appl.
H. Aydi, E. Karapınar, B. Samet
semanticscholar   +1 more source

Fixed point results for contractions involving generalized altering distances in ordered metric spaces

open access: yesFixed Point Theory and Applications, 2011
In this article, we establish coincidence point and common fixed point theorems for mappings satisfying a contractive inequality which involves two generalized altering distance functions in ordered complete metric spaces.
Samet Bessem, Kim Jong, Nashine Hemant
doaj  

Common fixed point results for two families of multivalued A–dominated contractive mappings on closed ball with applications

open access: yesOpen Mathematics, 2019
The purpose of this paper is to find common fixed point results for two families of multivalued mappings fulfilling generalized rational type A–dominated contractive conditions on a closed ball in complete dislocated b-metric spaces. Some new fixed point
Rasham Tahair, Shoaib Abdullah
doaj   +1 more source

A new stability results for the backward heat equation

open access: yes, 2009
In this paper, we regularize the nonlinear inverse time heat problem in the unbounded region by Fourier method. Some new convergence rates are obtained.
Dinh, Alain Pham Ngoc   +3 more
core  

Fixed point theorems for α-Geraghty contraction type maps in metric spaces

open access: yes, 2013
In this paper, we introduce a notion of α-Geraghty contraction type maps in the setting of a metric space. We also establish some fixed point theorems for such maps and give an example to illustrate our results. Finally, we discuss the application of our
S. Cho, J. Bae, E. Karapınar
semanticscholar   +1 more source

The fixed point theorems of 1-set-contractive operators in Banach space

open access: yesFixed Point Theory and Applications, 2011
In this paper, we obtain some new fixed point theorems and existence theorems of solutions for the equation Ax = μx using properties of strictly convex (concave) function and theories of topological degree. Our results and methods are different from
Wang Shuang
doaj  

Common fixed points for single-valued and multi-valued maps satisfying a generalized contraction in G-metric spaces

open access: yes, 2012
In this article, we establish some common fixed point theorems for a hybrid pair {g, T} of single valued and multi-valued maps satisfying a generalized contractive condition defined on G-metric spaces. Our results unify, generalize and complement various
N. Tahat   +3 more
semanticscholar   +1 more source

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