On Ozawa's Property for Free Group Factors

  title={On Ozawa's Property for Free Group Factors},
  author={Sorin Popa},
We give a new proof of a result of Ozawa showing that if a von Neumann subalgebra Q of a free group factor LFn, 2 ≤ n ≤ ∞ has relative commutant diffuse (i.e. without atoms), then Q is amenable. 


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