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The Lusternik-Schnirelmann category of metric spaces

Authors
  • Srinivasan, Tulsi
Type
Published Article
Publication Date
Apr 18, 2014
Submission Date
Feb 08, 2014
Identifiers
arXiv ID: 1402.1875
Source
arXiv
License
Yellow
External links

Abstract

We extend the theory of the Lusternik-Schnirelmann category to general metric spaces by means of covers by arbitrary subsets. We also generalize the definition of the strict category weight. We show that if the Bockstein homomorphism on a metric space is non-zero, then its LS-category is at least two, and use this to compute the category of Pontryagin surfaces. Additionally, we prove that a Polish space with LS-category $n$ can be presented as the inverse limit of ANR spaces of category at most $n$.

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