Universal Borel actions of countable groups
type: Item
instance of: scholarly article
title: Universal Borel actions of countable groups
zbMATH Open document ID: 1284.03230
DOI: 10.4171/GGD/161
author: Simon Thomas
published in: Groups, Geometry, and Dynamics
publication date: 2012-06-11T00:00:00Z
review text: Summary: If the countable group \(G\) has a nonabelian free subgroup, then there exists a standard Borel \(G\)-space such that the corresponding orbit equivalence relation is countable universal. In this paper, we consider the question of whether the converse also holds.
Mathematics Subject Classification ID: 03E15
Mathematics Subject Classification ID: 37A20
zbMATH DE Number: 6045086
zbMATH Keywords: Borel equivalence relation
zbMATH Keywords: superrigidity
zbMATH Keywords: sofic groups
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 6045086