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math.OA2006
On Transitive Algebras Containing a Standard Finite von Neumann Subalgebra
Junsheng Fang, Don Hadwin, Mohan Ravichandran
Let $\M$ be a finite von Neumann algebra acting on a Hilbert space $\H$ and be a transitive algebra containing $\M'$. In this paper we prove that if is 2-fold transitive, t…
math.OA2005
A Folner Invariant for Type II_1 Factors
Jon P. Bannon, Mohan Ravichandran
In this article we introduce an isomorphism invariant for type II_1 factors using the Connes-Folner condition. We compute bounds of this number for free group factors.