Fundamental group of simple $C^*$-algebras with unique trace II
Operator Algebras
2010-06-23 v2 Functional Analysis
Abstract
We show that any countable subgroup of the multiplicative group of positive real numbers can be realized as the fundamental group of a separable simple unital -algebra with unique trace. Furthermore for any fixed countable subgroup of , there exist uncountably many mutually nonisomorphic such algebras with .
Keywords
Cite
@article{arxiv.0911.0238,
title = {Fundamental group of simple $C^*$-algebras with unique trace II},
author = {Norio Nawata and Yasuo Watatani},
journal= {arXiv preprint arXiv:0911.0238},
year = {2010}
}
Comments
8 pages, added some results