English

Exotic circle actions on classifiable C*-algebras

Operator Algebras 2023-12-22 v2

Abstract

We construct an example of a simple nuclear separable unital stably finite Z-stable C*-algebra along with an action of the circle such that the crossed product is simple but not Z-stable.

Keywords

Cite

@article{arxiv.2308.06830,
  title  = {Exotic circle actions on classifiable C*-algebras},
  author = {Ilan Hirshberg},
  journal= {arXiv preprint arXiv:2308.06830},
  year   = {2023}
}

Comments

10 pages. Minor revisions. To appear, J. Funct. Anal

R2 v1 2026-06-28T11:54:41.723Z