Common Attractive Points of Generalized Hybrid Multi-Valued Mappings and Applications

In this paper, we first propose the concepts of <inline-formula><math display="inline"><semantics><mrow><mo>(</mo><mi>ζ</mi><mo>,</mo><mi>η</mi><mo>,</mo><mi>λ</mi><mo>,</mo><mi&g...

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Main Authors: Lili Chen, Ni Yang, Jing Zhou
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/8/8/1307
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author Lili Chen
Ni Yang
Jing Zhou
author_facet Lili Chen
Ni Yang
Jing Zhou
author_sort Lili Chen
collection DOAJ
description In this paper, we first propose the concepts of <inline-formula><math display="inline"><semantics><mrow><mo>(</mo><mi>ζ</mi><mo>,</mo><mi>η</mi><mo>,</mo><mi>λ</mi><mo>,</mo><mi>π</mi><mo>)</mo></mrow></semantics></math></inline-formula>-generalized hybrid multi-valued mappings, the set of all the common attractive points (<inline-formula><math display="inline"><semantics><mrow><mi>C</mi><msub><mi>A</mi><mrow><mi>f</mi><mo>,</mo><mi>g</mi></mrow></msub></mrow></semantics></math></inline-formula>) and the set of all the common strongly attractive points (<inline-formula><math display="inline"><semantics><mrow><msub><mi>C</mi><mi>s</mi></msub><msub><mi>A</mi><mrow><mi>f</mi><mo>,</mo><mi>g</mi></mrow></msub></mrow></semantics></math></inline-formula>), respectively for the multi-valued mappings <i>f</i> and <i>g</i> in a CAT(0) space. Moreover, we give some elementary properties in regard to the sets <inline-formula><math display="inline"><semantics><msub><mi>A</mi><mi>f</mi></msub></semantics></math></inline-formula>, <inline-formula><math display="inline"><semantics><msub><mi>F</mi><mi>f</mi></msub></semantics></math></inline-formula> and <inline-formula><math display="inline"><semantics><mrow><mi>C</mi><msub><mi>A</mi><mrow><mi>f</mi><mo>,</mo><mi>g</mi></mrow></msub></mrow></semantics></math></inline-formula> for the multi-valued mappings <i>f</i> and <i>g</i> in a complete CAT(0) space. Furthermore, we present a weak convergence theorem of common attractive points for two <inline-formula><math display="inline"><semantics><mrow><mo>(</mo><mi>ζ</mi><mo>,</mo><mi>η</mi><mo>,</mo><mi>λ</mi><mo>,</mo><mi>π</mi><mo>)</mo></mrow></semantics></math></inline-formula>-generalized hybrid multi-valued mappings in the above space by virtue of Banach limits technique and Ishikawa iteration respectively. Finally, we prove strong convergence of a new viscosity approximation method for two <inline-formula><math display="inline"><semantics><mrow><mo>(</mo><mi>ζ</mi><mo>,</mo><mi>η</mi><mo>,</mo><mi>λ</mi><mo>,</mo><mi>π</mi><mo>)</mo></mrow></semantics></math></inline-formula>-generalized hybrid multi-valued mappings in CAT(0) spaces, which also solves a kind of variational inequality problem.
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spelling doaj.art-4e5a1a95672c4b3d84d539b56b2a27652023-11-20T09:19:20ZengMDPI AGMathematics2227-73902020-08-0188130710.3390/math8081307Common Attractive Points of Generalized Hybrid Multi-Valued Mappings and ApplicationsLili Chen0Ni Yang1Jing Zhou2College of Mathematics and Systems Science, Shandong University of Science and Technology, Qingdao 266590, ChinaDepartment of Mathematics, Harbin University of Science and Technology, Harbin 150080, ChinaSchool of Mathematics Physics and Statistics, Shanghai University of Engineering Science, Shanghai 201620, ChinaIn this paper, we first propose the concepts of <inline-formula><math display="inline"><semantics><mrow><mo>(</mo><mi>ζ</mi><mo>,</mo><mi>η</mi><mo>,</mo><mi>λ</mi><mo>,</mo><mi>π</mi><mo>)</mo></mrow></semantics></math></inline-formula>-generalized hybrid multi-valued mappings, the set of all the common attractive points (<inline-formula><math display="inline"><semantics><mrow><mi>C</mi><msub><mi>A</mi><mrow><mi>f</mi><mo>,</mo><mi>g</mi></mrow></msub></mrow></semantics></math></inline-formula>) and the set of all the common strongly attractive points (<inline-formula><math display="inline"><semantics><mrow><msub><mi>C</mi><mi>s</mi></msub><msub><mi>A</mi><mrow><mi>f</mi><mo>,</mo><mi>g</mi></mrow></msub></mrow></semantics></math></inline-formula>), respectively for the multi-valued mappings <i>f</i> and <i>g</i> in a CAT(0) space. Moreover, we give some elementary properties in regard to the sets <inline-formula><math display="inline"><semantics><msub><mi>A</mi><mi>f</mi></msub></semantics></math></inline-formula>, <inline-formula><math display="inline"><semantics><msub><mi>F</mi><mi>f</mi></msub></semantics></math></inline-formula> and <inline-formula><math display="inline"><semantics><mrow><mi>C</mi><msub><mi>A</mi><mrow><mi>f</mi><mo>,</mo><mi>g</mi></mrow></msub></mrow></semantics></math></inline-formula> for the multi-valued mappings <i>f</i> and <i>g</i> in a complete CAT(0) space. Furthermore, we present a weak convergence theorem of common attractive points for two <inline-formula><math display="inline"><semantics><mrow><mo>(</mo><mi>ζ</mi><mo>,</mo><mi>η</mi><mo>,</mo><mi>λ</mi><mo>,</mo><mi>π</mi><mo>)</mo></mrow></semantics></math></inline-formula>-generalized hybrid multi-valued mappings in the above space by virtue of Banach limits technique and Ishikawa iteration respectively. Finally, we prove strong convergence of a new viscosity approximation method for two <inline-formula><math display="inline"><semantics><mrow><mo>(</mo><mi>ζ</mi><mo>,</mo><mi>η</mi><mo>,</mo><mi>λ</mi><mo>,</mo><mi>π</mi><mo>)</mo></mrow></semantics></math></inline-formula>-generalized hybrid multi-valued mappings in CAT(0) spaces, which also solves a kind of variational inequality problem.https://www.mdpi.com/2227-7390/8/8/1307generalized hybrid set-valued mappingcommon attractive pointCAT(0) space
spellingShingle Lili Chen
Ni Yang
Jing Zhou
Common Attractive Points of Generalized Hybrid Multi-Valued Mappings and Applications
Mathematics
generalized hybrid set-valued mapping
common attractive point
CAT(0) space
title Common Attractive Points of Generalized Hybrid Multi-Valued Mappings and Applications
title_full Common Attractive Points of Generalized Hybrid Multi-Valued Mappings and Applications
title_fullStr Common Attractive Points of Generalized Hybrid Multi-Valued Mappings and Applications
title_full_unstemmed Common Attractive Points of Generalized Hybrid Multi-Valued Mappings and Applications
title_short Common Attractive Points of Generalized Hybrid Multi-Valued Mappings and Applications
title_sort common attractive points of generalized hybrid multi valued mappings and applications
topic generalized hybrid set-valued mapping
common attractive point
CAT(0) space
url https://www.mdpi.com/2227-7390/8/8/1307
work_keys_str_mv AT lilichen commonattractivepointsofgeneralizedhybridmultivaluedmappingsandapplications
AT niyang commonattractivepointsofgeneralizedhybridmultivaluedmappingsandapplications
AT jingzhou commonattractivepointsofgeneralizedhybridmultivaluedmappingsandapplications