Continuity of the maps f↦∪x∈Iω(x,f) and f↦{ω(x,f):x∈I}

We study the behavior of two maps in an effort to better understand the stability of ω-limit sets ω(x,f) as we perturb either x or f, or both. The first map is the set-valued function Λ taking f in C(I,I) to its collection of ω-limit points Λ(f)=∪x∈Iω(x,f), and the second is the map Ω taking f in C(...

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Main Author: T. H. Steele
Format: Article
Language:English
Published: Wiley 2006-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Online Access:http://dx.doi.org/10.1155/IJMMS/2006/82623
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author T. H. Steele
author_facet T. H. Steele
author_sort T. H. Steele
collection DOAJ
description We study the behavior of two maps in an effort to better understand the stability of ω-limit sets ω(x,f) as we perturb either x or f, or both. The first map is the set-valued function Λ taking f in C(I,I) to its collection of ω-limit points Λ(f)=∪x∈Iω(x,f), and the second is the map Ω taking f in C(I,I) to its collection of ω-limit sets Ω(f)={ω(x,f):x∈I}. We characterize those functions f in C(I,I) at which each of our maps Λ and Ω is continuous, and then go on to show that both Λ and Ω are continuous on a residual subset of C(I,I). We then investigate the relationship between the continuity of Λ and Ω at some function f in C(I,I) with the chaotic nature of that function.
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spelling doaj-art-138d23e3bbd544b5be66ce50a894fe762025-02-03T06:07:12ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252006-01-01200610.1155/IJMMS/2006/8262382623Continuity of the maps f↦∪x∈Iω(x,f) and f↦{ω(x,f):x∈I}T. H. Steele0Department of Mathematics, Weber State University, Ogden 84408-1702, UT, USAWe study the behavior of two maps in an effort to better understand the stability of ω-limit sets ω(x,f) as we perturb either x or f, or both. The first map is the set-valued function Λ taking f in C(I,I) to its collection of ω-limit points Λ(f)=∪x∈Iω(x,f), and the second is the map Ω taking f in C(I,I) to its collection of ω-limit sets Ω(f)={ω(x,f):x∈I}. We characterize those functions f in C(I,I) at which each of our maps Λ and Ω is continuous, and then go on to show that both Λ and Ω are continuous on a residual subset of C(I,I). We then investigate the relationship between the continuity of Λ and Ω at some function f in C(I,I) with the chaotic nature of that function.http://dx.doi.org/10.1155/IJMMS/2006/82623
spellingShingle T. H. Steele
Continuity of the maps f↦∪x∈Iω(x,f) and f↦{ω(x,f):x∈I}
International Journal of Mathematics and Mathematical Sciences
title Continuity of the maps f↦∪x∈Iω(x,f) and f↦{ω(x,f):x∈I}
title_full Continuity of the maps f↦∪x∈Iω(x,f) and f↦{ω(x,f):x∈I}
title_fullStr Continuity of the maps f↦∪x∈Iω(x,f) and f↦{ω(x,f):x∈I}
title_full_unstemmed Continuity of the maps f↦∪x∈Iω(x,f) and f↦{ω(x,f):x∈I}
title_short Continuity of the maps f↦∪x∈Iω(x,f) and f↦{ω(x,f):x∈I}
title_sort continuity of the maps f↦∪x∈iω x f and f↦ ω x f x∈i
url http://dx.doi.org/10.1155/IJMMS/2006/82623
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