Results 41 to 50 of about 3,848 (206)

Fixed points of weakly K-nonexpansive mappings and a stability result for fixed point iterative process with an application

open access: yesJournal of Inequalities and Applications, 2022
In this article, we introduce a new type of non-expansive mapping, namely weakly K-nonexpansive mapping, which is weaker than non-expansiveness and stronger than quasi-nonexpansiveness.
Sayantan Panja   +4 more
doaj   +1 more source

On the dynamics of sup-norm non-expansive maps [PDF]

open access: yes, 2005
We present several results for the periods of periodic points of sup-norm non-expansive maps. In particular, we show that the period of each periodic point of a sup-norm non-expansive map $f\colon M\to M$, where $M\subset \mathbb{R}^n$, is at most ...
Lemmens, Bas   +3 more
core   +1 more source

Approximate Fixed Points for Nonexpansive and Quasi-Nonexpansive Mappings in Hyperspaces [PDF]

open access: yesFixed Point Theory and Applications, 2009
AbstractThis paper provides a few convergence results of the Ishikawa iteration sequence with errors for nonexpansive and quasi-nonexpansive mappings in hyperspaces. The results presented in this paper improve and generalize some results in the literature.
Zeqing Liu   +2 more
openaire   +4 more sources

Fixed point theorems for a sum of two mappings in locally convex spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
Cain and Nashed generalized to locally convex spaces a well known fixed point theorem of Krasnoselskii for a sum of contraction and compact mappings in Banach spaces.
P. Vijayaraju
doaj   +1 more source

ON MULTIVALUED f-NONEXPANSIVE MAPS

open access: yesDemonstratio Mathematica, 1999
The authors prove coincidence, fixed point, and convergence theorems which extend previous results by G. L. Acedo and H.-K. Xu, W. G. Dotson, G. Jungck and S. Sessa, and E. Lami Dozo.
Latif, Abdul, Tweddle, Ian
openaire   +1 more source

Approximation of Fixed Points of Weak Bregman Relatively Nonexpansive Mappings in Banach Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
We introduce a concept of weak Bregman relatively nonexpansive mapping which is distinct from Bregman relatively nonexpansive mapping. By using projection techniques, we construct several modification of Mann type iterative algorithms with errors and ...
Jiawei Chen   +3 more
doaj   +1 more source

On Fixed Point Convergence Results for a General Class of Nonlinear Mappings with a Supportive Application

open access: yesJournal of Mathematics, 2023
In this article, we considered the class of generalized α,β-nonexpansive (GABN) mappings that properly includes all nonexpansive, Suzuki nonexpansive (SN), generalized α-nonexpansive (GAN), and Reich–Suzuki nonexpansive (RSN) mappings.
Fayyaz Ahmad   +4 more
doaj   +1 more source

Multivalued Nonexpansive Mappings and Opial's Condition [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
We give relations between a condition introduced by Z. Opial which characterizes weak limits by means of the norm in some Banach spaces and approximations of the identity, in particular for systems of projections. Finally a fixed point theorem for multivalued nonexpansive mappings in a Banach space satisfying this condition is proved; this result ...
openaire   +3 more sources

Approximation of Fixed Points for Enriched Suzuki Nonexpansive Operators with an Application in Hilbert Spaces

open access: yesAxioms, 2021
In this article, we introduce the class of enriched Suzuki nonexpansive (ESN) mappings. We show that this new class of mappings properly contains the class of Suzuki nonexpansive as well as the class of enriched nonexpansive mappings.
Kifayat Ullah   +3 more
doaj   +1 more source

On monotone nonexpansive mappings in CAT p ( 0 ) $\operatorname{CAT}_{p}(0)$ spaces

open access: yesFixed Point Theory and Applications, 2020
In this paper, based on some geometrical properties of CAT p ( 0 ) $\operatorname{CAT}_{p}(0)$ spaces, for p ≥ 2 $p \geq 2$ , we obtain two fixed point results for monotone multivalued nonexpansive mappings and proximally monotone nonexpansive mappings ...
Sami Shukri
doaj   +1 more source

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