Results 1 to 10 of about 943 (54)

Viscosity Approximation for Split Equality Generalized Mixed Equilibrium Problems With Semigroups of Nonexpansive Mappings

open access: yesAbstract and Applied Analysis
The paper proposes a viscosity approximation algorithm for approximating fixed points. The study in this paper demonstrates that without having the prior estimations of operator norm and semicompactness of one‐parameter semigroups of nonexpansive ...
Prashant Patel, Rahul Shukla
semanticscholar   +2 more sources

KKM and KY fan theorems in modular function spaces

open access: yesFixed Point Theory and Applications, 2011
In modular function spaces, we introduce Knaster-Kuratowski-Mazurkiewicz mappings (in short KKM-mappings) and prove an analogue to Ky Fan s fixed point theorem.2010 Mathematics Subject Classification: Primary 46B20, 47H09; Secondary 47H10.
M. Khamsi, A. Latif, Hamid Al-Sulami
semanticscholar   +3 more sources

Mann-Dotson's algorithm for a countable family of non-self Lipschitz mappings in hyperbolic metric space

open access: yesTopological Algebra and its Applications, 2023
The aim of this article is to present some Δ\Delta -convergence and strong convergence results for a countable family of non-self mappings. More precisely, we employ Mann-Dotson’s algorithm to approximate, common fixed points of a countable family of non-
Patel Prashant, Shukla Rahul
doaj   +1 more source

Some Fixed Point Results for Sehgal-Proinov Type Contractions in Modular b−Metric Spaces

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
In this paper, inspired by Proinov type contractions, we intend to acquire novel definitions and results that expand Sehgals [3] metric fixed point theory in the sense of modular b−metric space. To demonstrate the theorems, we employ a general form of (α,
Büyükkaya Abdurrahman   +1 more
doaj   +1 more source

A new class of unsaturated mappings: Ćirić-Reich-Rus contractions

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
Using the technique of enriching contractive type mappings, we introduce a more general concept of enriched Ćirić-Reich-Rus contraction than the one studied in [Berinde, V.; Păcurar, M.
Berinde Vasile, Păcurar Mădălina
doaj   +1 more source

Compositions and convex combinations of asymptotically regular firmly nonexpansive mappings are also asymptotically regular [PDF]

open access: yesFixed Point Theory and Applications, 2011
Because of Minty's classical correspondence between firmly nonexpansive mappings and maximally monotone operators, the notion of a firmly nonexpansive mapping has proven to be of basic importance in fixed point theory, monotone operator theory, and ...
Heinz H. Bauschke   +3 more
semanticscholar   +1 more source

Firmly nonexpansive mappings in classes of geodesic spaces [PDF]

open access: yes, 2012
Firmly nonexpansive mappings play an important role in metric fixed point theory and optimization due to their correspondence with maximal monotone operators.
David Ariza-Ruiz   +2 more
semanticscholar   +1 more source

Attouch-Théra Duality, Generalized Cycles, and Gap Vectors [PDF]

open access: yesSIAM Journal on Optimization, 2021
Using the Attouch-Théra duality, we study the cycles, gap vectors and fixed point sets of compositions of proximal mappings. Sufficient conditions are given for the existence of cycles and gap vectors.
S. Alwadani   +2 more
semanticscholar   +1 more source

Fixed Point Index for Simulation Mappings and Applications

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
In this paper, we construct the fixed point index for a class of contractive mapping defined by a simulation mapping and a measure of noncompact-ness noted by Zµ− contraction maps.
Benmezaï Abdelhamid   +2 more
doaj   +1 more source

An implicit algorithm for two finite families of nonexpansive maps in hyperbolic spaces

open access: yesFixed Point Theory and Applications, 2012
In this article, we propose and analyze an implicit algorithm for two finite families of nonexpansive maps in hyperbolic spaces. Results concerning Δ-convergence as well as strong convergence of the proposed algorithm are proved.
A. Khan   +2 more
semanticscholar   +2 more sources

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