Crossed Products and MF algebras
Operator Algebras
2017-05-29 v1
Abstract
We prove that the crossed product AxG of a unital finitely generated MF algebra A by a discrete finitely generated amenable residually finite group G is an MF algebra, provided that the action is almost periodic. This generalizes a result of Hadwin and Shen. We also construct two examples of crossed product C*-algebras whose BDF Ext semigroups are not groups.
Keywords
Cite
@article{arxiv.1301.4585,
title = {Crossed Products and MF algebras},
author = {Weihua Li and Stefanos Orfanos},
journal= {arXiv preprint arXiv:1301.4585},
year = {2017}
}
Comments
9 pages