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math.OA2009
An inner amenable group whose von Neumann algebra does not have property Gamma
Stefaan Vaes
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…
math.OA2009★ 47 cited
Group measure space decomposition of II_1 factors and W*-superrigidity
Sorin Popa, Stefaan Vaes
We prove a "unique crossed product decomposition" result for group measure space II_1 factors arising from arbitrary free ergodic probability measure preserving (p.m.p.) actions of…