Approximation of Fixed Points of Multivalued Generalized (<i>α</i>,<i>β</i>)-Nonexpansive Mappings in an Ordered CAT(0) Space

The purpose of this article is to initiate the notion of monotone multivalued generalized (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics></math></inline-formula>,&...

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Published in:Mathematics
Main Authors: Mujahid Abbas, Hira Iqbal, Manuel De la Sen, Khushdil Ahmad
Format: Article
Language:English
Published: MDPI AG 2021-08-01
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Online Access:https://www.mdpi.com/2227-7390/9/16/1945
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author Mujahid Abbas
Hira Iqbal
Manuel De la Sen
Khushdil Ahmad
author_facet Mujahid Abbas
Hira Iqbal
Manuel De la Sen
Khushdil Ahmad
author_sort Mujahid Abbas
collection DOAJ
container_title Mathematics
description The purpose of this article is to initiate the notion of monotone multivalued generalized (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics></math></inline-formula>,<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>β</mi></semantics></math></inline-formula>)-nonexpansive mappings and explore the iterative approximation of the fixed points for the mapping in an ordered CAT(0) space. In particular, we employ the <i>S</i>-iteration algorithm in CAT(0) space to prove some convergence results. Moreover, some examples and useful results related to the proposed mapping are provided. Numerical experiments are also provided to illustrate and compare the convergence of the iteration scheme. Finally, an application of the iterative scheme has been presented in finding the solutions of integral differential equation.
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spelling doaj-art-7d1663d4ad6544db89f6516ff241e3f92025-08-19T22:41:44ZengMDPI AGMathematics2227-73902021-08-01916194510.3390/math9161945Approximation of Fixed Points of Multivalued Generalized (<i>α</i>,<i>β</i>)-Nonexpansive Mappings in an Ordered CAT(0) SpaceMujahid Abbas0Hira Iqbal1Manuel De la Sen2Khushdil Ahmad3Department of Mathematics, Government College University, Katchery Road, Lahore 54000, PakistanDepartment of Sciences and Humanities, Lahore Campus, National University of Computer and Emerging Sciences, Lahore 54000, PakistanInstitute of Research and Development of Processes, University of the Basque Country, 48940 Leioa, SpainDepartment of Mathematics, Government College University, Katchery Road, Lahore 54000, PakistanThe purpose of this article is to initiate the notion of monotone multivalued generalized (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics></math></inline-formula>,<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>β</mi></semantics></math></inline-formula>)-nonexpansive mappings and explore the iterative approximation of the fixed points for the mapping in an ordered CAT(0) space. In particular, we employ the <i>S</i>-iteration algorithm in CAT(0) space to prove some convergence results. Moreover, some examples and useful results related to the proposed mapping are provided. Numerical experiments are also provided to illustrate and compare the convergence of the iteration scheme. Finally, an application of the iterative scheme has been presented in finding the solutions of integral differential equation.https://www.mdpi.com/2227-7390/9/16/1945multivalued nonexpansive mappingfixed pointmonotoneCAT(0) space
spellingShingle Mujahid Abbas
Hira Iqbal
Manuel De la Sen
Khushdil Ahmad
Approximation of Fixed Points of Multivalued Generalized (<i>α</i>,<i>β</i>)-Nonexpansive Mappings in an Ordered CAT(0) Space
multivalued nonexpansive mapping
fixed point
monotone
CAT(0) space
title Approximation of Fixed Points of Multivalued Generalized (<i>α</i>,<i>β</i>)-Nonexpansive Mappings in an Ordered CAT(0) Space
title_full Approximation of Fixed Points of Multivalued Generalized (<i>α</i>,<i>β</i>)-Nonexpansive Mappings in an Ordered CAT(0) Space
title_fullStr Approximation of Fixed Points of Multivalued Generalized (<i>α</i>,<i>β</i>)-Nonexpansive Mappings in an Ordered CAT(0) Space
title_full_unstemmed Approximation of Fixed Points of Multivalued Generalized (<i>α</i>,<i>β</i>)-Nonexpansive Mappings in an Ordered CAT(0) Space
title_short Approximation of Fixed Points of Multivalued Generalized (<i>α</i>,<i>β</i>)-Nonexpansive Mappings in an Ordered CAT(0) Space
title_sort approximation of fixed points of multivalued generalized i α i i β i nonexpansive mappings in an ordered cat 0 space
topic multivalued nonexpansive mapping
fixed point
monotone
CAT(0) space
url https://www.mdpi.com/2227-7390/9/16/1945
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