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20032009
most citedOuter actions of a countable discrete amenable group on approximately finite dimensional factors I, General Theory

3 citations · 3 across the 3 of their papers we have counts for

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3 papers

math.OA2009

Outer Actions of a Discrete Amenable Group on Approximately Finite Dimensional Factors III, The Type Case, , Examples

Yoshikazu Katayama, Masamichi Takesaki

In this last article of the series on outer actions of a countable dicrete amenable group on AFD factors, we analyze outer actions of a countable discrete free abelian group on an…

math.OA2006

Outer Actions of a Discrete Amenable Group on Approximately Finite Dimensional Factors II, the III-Case,

Yoshikazu Katayama, Masamichi Takesaki

To study outer actions $\a$ of a group on a factor $\sM$ of type {\threel}, $0<\la<1$, we study first the cohomology group of a group with the unitary group of an abelian {\vna…

math.OA2003★ 3 cited

Outer actions of a countable discrete amenable group on approximately finite dimensional factors I, General Theory

Yoshikazu Katayama, Masamichi Takesaki

We associate a cohomological invariant to each outer action of a group on a factor, and classify them by the invariant in the case that the group is a countable discrete amenable g…