C*-envelopes and the Hao-Ng isomorphism for discrete groups
Operator Algebras
2016-08-12 v3
Abstract
Using non-selfadjoint techniques, we establish the Hao-Ng isomorphism for the reduced crossed product and all discrete groups. For the full crossed product an analogous result holds for all discrete groups but the C*-correspondences involved have to be hyperrigid. These results are obtained by calculating the C*-envelope of the reduced crossed product of an operator algebra by a discrete group.
Keywords
Cite
@article{arxiv.1606.01513,
title = {C*-envelopes and the Hao-Ng isomorphism for discrete groups},
author = {Elias G. Katsoulis},
journal= {arXiv preprint arXiv:1606.01513},
year = {2016}
}
Comments
15 pages, final version to appear in International Mathematics Research Notices