Asymptotic behavior of almost-orbits of reversible semigroups of non-Lipschitzian mappings in Banach spaces

Let C be a nonempty closed convex subset of a uniformly convex Banach space E with a Fréchet differentiable norm, G a right reversible semitopological semigroup, and 𝒮={S(t):t∈G} a continuous representation of G as mappings of asymptotically nonexpansive type of C into itself. The weak convergence o...

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Main Authors: Jong Soo Jung, Jong Yeoul Park, Jong Seo Park
Format: Article
Language:English
Published: Wiley 1997-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171297000094
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author Jong Soo Jung
Jong Yeoul Park
Jong Seo Park
author_facet Jong Soo Jung
Jong Yeoul Park
Jong Seo Park
author_sort Jong Soo Jung
collection DOAJ
description Let C be a nonempty closed convex subset of a uniformly convex Banach space E with a Fréchet differentiable norm, G a right reversible semitopological semigroup, and 𝒮={S(t):t∈G} a continuous representation of G as mappings of asymptotically nonexpansive type of C into itself. The weak convergence of an almost-orbit {u(t):t∈G} of 𝒮={S(t):t∈G} on C is established. Furthermore, it is shown that if P is the metric projection of E onto set F(S) of all common fixed points of 𝒮={S(t):t∈G}, then the strong limit of the net {Pu(t):t∈G} exists.
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series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-cb6299cf8f874ae8920c40d4becd89522025-08-20T03:23:37ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251997-01-01201516010.1155/S0161171297000094Asymptotic behavior of almost-orbits of reversible semigroups of non-Lipschitzian mappings in Banach spacesJong Soo Jung0Jong Yeoul Park1Jong Seo Park2Department of Mathematics, Dong-A University, Pusan 607-714, KoreaDepartment of Mathematics, Pusan National University, Pusan 609-735, KoreaDepartment of Mathematics, Graduate School, Dong-A University, Pusan 607-714, KoreaLet C be a nonempty closed convex subset of a uniformly convex Banach space E with a Fréchet differentiable norm, G a right reversible semitopological semigroup, and 𝒮={S(t):t∈G} a continuous representation of G as mappings of asymptotically nonexpansive type of C into itself. The weak convergence of an almost-orbit {u(t):t∈G} of 𝒮={S(t):t∈G} on C is established. Furthermore, it is shown that if P is the metric projection of E onto set F(S) of all common fixed points of 𝒮={S(t):t∈G}, then the strong limit of the net {Pu(t):t∈G} exists.http://dx.doi.org/10.1155/S0161171297000094almost-orbitfixed pointreversible semitopological semigroup semigroup of asymptotically nonexpansive typeuniformly convex Banach space.
spellingShingle Jong Soo Jung
Jong Yeoul Park
Jong Seo Park
Asymptotic behavior of almost-orbits of reversible semigroups of non-Lipschitzian mappings in Banach spaces
International Journal of Mathematics and Mathematical Sciences
almost-orbit
fixed point
reversible semitopological semigroup
semigroup of asymptotically nonexpansive type
uniformly convex Banach space.
title Asymptotic behavior of almost-orbits of reversible semigroups of non-Lipschitzian mappings in Banach spaces
title_full Asymptotic behavior of almost-orbits of reversible semigroups of non-Lipschitzian mappings in Banach spaces
title_fullStr Asymptotic behavior of almost-orbits of reversible semigroups of non-Lipschitzian mappings in Banach spaces
title_full_unstemmed Asymptotic behavior of almost-orbits of reversible semigroups of non-Lipschitzian mappings in Banach spaces
title_short Asymptotic behavior of almost-orbits of reversible semigroups of non-Lipschitzian mappings in Banach spaces
title_sort asymptotic behavior of almost orbits of reversible semigroups of non lipschitzian mappings in banach spaces
topic almost-orbit
fixed point
reversible semitopological semigroup
semigroup of asymptotically nonexpansive type
uniformly convex Banach space.
url http://dx.doi.org/10.1155/S0161171297000094
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