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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...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2012
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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 |
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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 |