Small large subgroups of a topological group

Authors

  • K.H. Hofmann
  • S.A. Morris
  • P. Nickolas
  • V. Pestov

DOI:

https://doi.org/10.1285/i15900932v14n2p161

Abstract

This paper presents the following general structure theorem for topological groups. Let G be a topological group of density $\kappa$, for any cardinal $\kappa$. Then each neighbourhood of the identity in G contains a subgroup of index less than or equal to $\kappa\aleph0$.

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Published

01-01-1994

Issue

Section

Articoli