Cargando…

Arc-reduced forms for Peano continua()

Define a point in a topological space to be homotopically fixed if it is fixed by every self-homotopy of the space, i.e. every self-map of the space which is homotopic to the identity, and define a point to be one-dimensional if it has a neighborhood whose covering dimension is one. In this paper, w...

Descripción completa

Detalles Bibliográficos
Autores principales: Conner, G., Meilstrup, M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3587464/
https://www.ncbi.nlm.nih.gov/pubmed/23471567
http://dx.doi.org/10.1016/j.topol.2012.08.015
_version_ 1782261408225820672
author Conner, G.
Meilstrup, M.
author_facet Conner, G.
Meilstrup, M.
author_sort Conner, G.
collection PubMed
description Define a point in a topological space to be homotopically fixed if it is fixed by every self-homotopy of the space, i.e. every self-map of the space which is homotopic to the identity, and define a point to be one-dimensional if it has a neighborhood whose covering dimension is one. In this paper, we show that every Peano continuum is homotopy equivalent to a reduced form in which the one-dimensional points which are not homotopically fixed form a disjoint union of open arcs. In the case of one-dimensional Peano continua, this presents the space as a compactification of a null sequence of open arcs by the homotopically fixed subspace.
format Online
Article
Text
id pubmed-3587464
institution National Center for Biotechnology Information
language English
publishDate 2012
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-35874642013-03-05 Arc-reduced forms for Peano continua() Conner, G. Meilstrup, M. Topol Appl Article Define a point in a topological space to be homotopically fixed if it is fixed by every self-homotopy of the space, i.e. every self-map of the space which is homotopic to the identity, and define a point to be one-dimensional if it has a neighborhood whose covering dimension is one. In this paper, we show that every Peano continuum is homotopy equivalent to a reduced form in which the one-dimensional points which are not homotopically fixed form a disjoint union of open arcs. In the case of one-dimensional Peano continua, this presents the space as a compactification of a null sequence of open arcs by the homotopically fixed subspace. Elsevier 2012-10-01 /pmc/articles/PMC3587464/ /pubmed/23471567 http://dx.doi.org/10.1016/j.topol.2012.08.015 Text en © 2012 Elsevier B.V. https://creativecommons.org/licenses/by-nc-nd/3.0/ Open Access under CC BY-NC-ND 3.0 (https://creativecommons.org/licenses/by-nc-nd/3.0/) license
spellingShingle Article
Conner, G.
Meilstrup, M.
Arc-reduced forms for Peano continua()
title Arc-reduced forms for Peano continua()
title_full Arc-reduced forms for Peano continua()
title_fullStr Arc-reduced forms for Peano continua()
title_full_unstemmed Arc-reduced forms for Peano continua()
title_short Arc-reduced forms for Peano continua()
title_sort arc-reduced forms for peano continua()
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3587464/
https://www.ncbi.nlm.nih.gov/pubmed/23471567
http://dx.doi.org/10.1016/j.topol.2012.08.015
work_keys_str_mv AT connerg arcreducedformsforpeanocontinua
AT meilstrupm arcreducedformsforpeanocontinua