On Ozawa's Property for Free Group Factors
Operator Algebras
2007-12-25 v5
Abstract
We give a new proof of a result of Ozawa showing that if a von Neumann subalgebra of a free group factor has relative commutant diffuse (i.e. without atoms), then is amenable.
Cite
@article{arxiv.math/0608451,
title = {On Ozawa's Property for Free Group Factors},
author = {Sorin Popa},
journal= {arXiv preprint arXiv:math/0608451},
year = {2007}
}
Comments
Final form; paper appeared in Int. Math. Res. Notices, 2007