An inner amenable group whose von Neumann algebra does not have property Gamma
Operator Algebras
2012-06-25 v1 Group Theory
Abstract
We construct inner amenable groups G with infinite conjugacy classes and such that the associated II_1 factor does not have property Gamma of Murray and von Neumann. This solves a problem posed by Effros in 1975.
Cite
@article{arxiv.0909.1485,
title = {An inner amenable group whose von Neumann algebra does not have property Gamma},
author = {Stefaan Vaes},
journal= {arXiv preprint arXiv:0909.1485},
year = {2012}
}