Implicit Ishikawa Approximation Methods for Nonexpansive Semigroups in CAT(0) Spaces

This paper is devoted to the convergence of the implicit Ishikawa iteration processes for approximating a common fixed point of nonexpansive semigroup in CAT(0) spaces. We obtain the Δ-convergence results of the implicit Ishikawa iteration sequences for a family of nonexpansive mappings in CAT(0) sp...

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Main Authors: Zhi-bin Liu, Yi-shen Chen, Xue-song Li, Yi-bin Xiao
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2013/503198
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author Zhi-bin Liu
Yi-shen Chen
Xue-song Li
Yi-bin Xiao
author_facet Zhi-bin Liu
Yi-shen Chen
Xue-song Li
Yi-bin Xiao
author_sort Zhi-bin Liu
collection DOAJ
description This paper is devoted to the convergence of the implicit Ishikawa iteration processes for approximating a common fixed point of nonexpansive semigroup in CAT(0) spaces. We obtain the Δ-convergence results of the implicit Ishikawa iteration sequences for a family of nonexpansive mappings in CAT(0) spaces. Under certain and different conditions, we also get the strong convergence theorems of implicit Ishikawa iteration sequences for nonexpansive semigroups in the CAT(0) spaces. The results presented in this paper extend and generalize some previous results.
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institution Kabale University
issn 1085-3375
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language English
publishDate 2013-01-01
publisher Wiley
record_format Article
series Abstract and Applied Analysis
spelling doaj-art-85cd76ad3cb945daa778469ca54984b52025-02-03T06:12:17ZengWileyAbstract and Applied Analysis1085-33751687-04092013-01-01201310.1155/2013/503198503198Implicit Ishikawa Approximation Methods for Nonexpansive Semigroups in CAT(0) SpacesZhi-bin Liu0Yi-shen Chen1Xue-song Li2Yi-bin Xiao3Southwest Petroleum University, Chengdu 610500, ChinaSouthwest Petroleum University, Chengdu 610500, ChinaDepartment of Mathematics, Sichuan University, Chengdu, Sichuan 610064, ChinaSchool of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, ChinaThis paper is devoted to the convergence of the implicit Ishikawa iteration processes for approximating a common fixed point of nonexpansive semigroup in CAT(0) spaces. We obtain the Δ-convergence results of the implicit Ishikawa iteration sequences for a family of nonexpansive mappings in CAT(0) spaces. Under certain and different conditions, we also get the strong convergence theorems of implicit Ishikawa iteration sequences for nonexpansive semigroups in the CAT(0) spaces. The results presented in this paper extend and generalize some previous results.http://dx.doi.org/10.1155/2013/503198
spellingShingle Zhi-bin Liu
Yi-shen Chen
Xue-song Li
Yi-bin Xiao
Implicit Ishikawa Approximation Methods for Nonexpansive Semigroups in CAT(0) Spaces
Abstract and Applied Analysis
title Implicit Ishikawa Approximation Methods for Nonexpansive Semigroups in CAT(0) Spaces
title_full Implicit Ishikawa Approximation Methods for Nonexpansive Semigroups in CAT(0) Spaces
title_fullStr Implicit Ishikawa Approximation Methods for Nonexpansive Semigroups in CAT(0) Spaces
title_full_unstemmed Implicit Ishikawa Approximation Methods for Nonexpansive Semigroups in CAT(0) Spaces
title_short Implicit Ishikawa Approximation Methods for Nonexpansive Semigroups in CAT(0) Spaces
title_sort implicit ishikawa approximation methods for nonexpansive semigroups in cat 0 spaces
url http://dx.doi.org/10.1155/2013/503198
work_keys_str_mv AT zhibinliu implicitishikawaapproximationmethodsfornonexpansivesemigroupsincat0spaces
AT yishenchen implicitishikawaapproximationmethodsfornonexpansivesemigroupsincat0spaces
AT xuesongli implicitishikawaapproximationmethodsfornonexpansivesemigroupsincat0spaces
AT yibinxiao implicitishikawaapproximationmethodsfornonexpansivesemigroupsincat0spaces