L2-Betti Numbers and Non-Unitarizable Groups without Free Subgroups

DOI10.1093/imrn/rnp085zbMath1192.43006arXiv0812.2093OpenAlexW2021993973MaRDI QIDQ3647140

Denis V. Osin

Publication date: 30 November 2009

Published in: International Mathematics Research Notices (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/0812.2093

zbMATH Keywords

free subgroups\(L^2\)-Betti numbersnon-unitarizable groups

Mathematics Subject Classification ID

Representations of groups, semigroups, etc. (aspects of abstract harmonic analysis) (43A65) Torsion groups, primary groups and generalized primary groups (20K10) Torsion-free groups, finite rank (20K15)

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