Existence of the Matui-Sato tracial Rokhlin property
Operator Algebras
2014-09-16 v4
Abstract
We show by construction that when is an elementary amenable group and is a unital simple nuclear and tracially approximately divisible -algebra, there exists an action of on with the tracial Rokhlin property in the sense of Matui and Sato. In particular, group actions with this Matui-Sato tracial Rokhlin property always exist for unital simple separable nuclear -algebras with tracial rank at most one. If is simple with rational tracial rank at most one, then the crossed product is also simple with rational tracial rank at most one.
Keywords
Cite
@article{arxiv.1402.5560,
title = {Existence of the Matui-Sato tracial Rokhlin property},
author = {Michael Yuan Sun},
journal= {arXiv preprint arXiv:1402.5560},
year = {2014}
}
Comments
21 pages. Results for crossed products updated to reflect Osawa-Rordam-Sato's recent work. Exposition simplified and title changed. To appear in the Journal of Operator Theory