Exactness of reduced amalgamated free product C*-algebras
Operator Algebras
2007-05-23 v1
Abstract
Some completely positive maps on reduced amalgamated free products of C*-algebras are constructed; these allow a proof that the class of exact unital C*-algebras is closed under taking reduced amalgamated free products. Consequently, the class of exact discrete groups is closed under taking amalgamated free products.
Keywords
Cite
@article{arxiv.math/9911001,
title = {Exactness of reduced amalgamated free product C*-algebras},
author = {Ken Dykema},
journal= {arXiv preprint arXiv:math/9911001},
year = {2007}
}
Comments
21 pages