Mapping class groups and outer automorphism groups of free groups are C*-simple
Operator Algebras
2007-05-23 v1
Abstract
We prove that the reduced C*-algebras of centerless mapping class groups and outer automorphism groups of free groups are simple, as are the irreducible pure subgroups of mapping class groups and the analogous subgroups of outer automorphism groups of free groups.
Keywords
Cite
@article{arxiv.math/0306204,
title = {Mapping class groups and outer automorphism groups of free groups are C*-simple},
author = {Martin R. Bridson and Pierre de la Harpe},
journal= {arXiv preprint arXiv:math/0306204},
year = {2007}
}
Comments
10 pages, amstex. J. Functional Analysis, to be published