Opposite algebras of groupoid C*-algebras
Operator Algebras
2017-08-15 v1
Abstract
We show that every groupoid C*-algebra is isomorphic to its opposite, and deduce that there exist C*-algebras that are not stably isomorphic to groupoid C*-algebras, though many of them are stably isomorphic to twisted groupoid C*-algebras. We also prove that the opposite algebra of a section algebra of a Fell-bundle over a groupoid is isomorphic to the section algebra of a natural opposite bundle.
Keywords
Cite
@article{arxiv.1708.04105,
title = {Opposite algebras of groupoid C*-algebras},
author = {Alcides Buss and Aidan Sims},
journal= {arXiv preprint arXiv:1708.04105},
year = {2017}
}
Comments
10 pages