Interrelations between some noncontractibility conditions
type: Item
instance of: scholarly article
title: Interrelations between some noncontractibility conditions
zbMATH Open document ID: 0795.54048
DOI: 10.1007/BF02844461
author: S. Singh
publication date: 1993-01-16T00:00:00Z
review text: The authors deal with a theorem of L. Oversteegen, who showed that a fan is not contractible iff either it contains a \(Q\)-point or it is of type \(N\), or it is not pairwise smooth. They investigate different sufficient conditions for non-contractibility of dendroids and fans.
Mathematics Subject Classification ID: 54F15
Mathematics Subject Classification ID: 54F50
zbMATH DE Number: 91664
zbMATH Keywords: contractible fans
zbMATH Keywords: \(Q\)-point
zbMATH Keywords: type \(N\)
zbMATH Keywords: dendroids
zbMATH Keywords: fans
reviewed by: Joachim Grispolakis
MaRDI profile type: Publication
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full work available at URL: https://doi.org/10.1007/bf02844461
OpenAlex ID: W2048141424
published in: Rendiconti del Circolo Matematico di Palermo
description: scientific article; zbMATH DE number 91664