English

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.

Keywords

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