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arXiv · 2410.06579

Non Kazhdan's groups and a new approximation property for tracial von Neumann algebras

Paul Jolissaint
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Abstract

We define a new approximation property for tracial von Neumann algebras, called \textit{weakly mixing approximation property} which, for discrete groups and II$_1$ factors, is equivalent to the negation of Kazhdan's property (T).

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Paul Jolissaint. 2024-10-09. Non Kazhdan's groups and a new approximation property for tracial von Neumann algebras. https://doi.org/10.36045/j.bbms.250227

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