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math.OA2004
Weakly Exact von Neumann Algebras
Narutaka Ozawa
The theory of exact C*-algebras was introduced by Kirchberg and has been influential in recent development of C*-algebras. A fundamental result on exact C*-algebras is a local char…
math.OA2003★ 3 cited
Solid von Neumann Algebras
Narutaka Ozawa
We prove that the relative commutant of a diffuse von Neumann subalgebra in a hyperbolic group von Neumann algebra is always injective. It follows that any non-injective subfactor…