Uniqueness questions for C*-norms on group rings
Operator Algebras
2019-04-10 v2 Group Theory
Abstract
We provide a large class of discrete amenable groups for which the complex group ring has several C*-completions, thus providing partial evidence towards a positive answer to a question raised by Rostislav Grigorchuk, Magdalena Musat and Mikael R{\o}rdam.
Cite
@article{arxiv.1806.10983,
title = {Uniqueness questions for C*-norms on group rings},
author = {Vadim Alekseev and David Kyed},
journal= {arXiv preprint arXiv:1806.10983},
year = {2019}
}
Comments
9 pages