A decomposition theorem for regular extensions of von Neumann algebras.

DOI10.7146/math.scand.a-12349zbMath0733.46036OpenAlexW2285724396MaRDI QIDQ3359224

Erik Bedos

Publication date: 1991

Published in: MATHEMATICA SCANDINAVICA (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/167150

zbMATH Keywords

two-cocyclestrivial relative commutantproperty \(\Gamma \)separable \(II_ 1\)- factortwisted crossed products of \(C^ *\)-algebrasregular extensions of von Neumann algebras by discrete groups may be decomposed via normal subgroups and quotient groups

Mathematics Subject Classification ID

Noncommutative dynamical systems (46L55) Classifications of (C^*)-algebras (46L35)

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On reduced twisted group \(C^{\ast}\)-algebras that are simple and/or have a unique trace ⋮ Simple C*-crossed products with a unique trace

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