On Ozawa's Property for Free Group Factors
classification
🧮 math.OA
keywords
freegroupozawaamenableatomscommutantdiffusefactor
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We give a new proof of a result of Ozawa showing that if a von Neumann subalgebra $Q$ of a free group factor $L\Bbb F_n, 2\leq n\leq \infty$ has relative commutant diffuse (i.e. without atoms), then $Q$ is amenable.
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