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arXiv · 1606.01513

C*-envelopes and the Hao-Ng isomorphism for discrete groups

Elias G. Katsoulis
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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.

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Elias G. Katsoulis. 2016-06-05. C*-envelopes and the Hao-Ng isomorphism for discrete groups. https://arxiv.org/abs/1606.01513

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