English

Isometric Actions are Quasidiagonal

Operator Algebras 2022-03-01 v1 Dynamical Systems

Abstract

We show every isometric action is quasidiagonal in a strong sense. This shows that reduced crossed products by such actions are quasidiagonal or MF whenever the reduced algebra of the acting group is quasidiagonal or MF.

Keywords

Cite

@article{arxiv.2202.13010,
  title  = {Isometric Actions are Quasidiagonal},
  author = {Samantha Pilgrim},
  journal= {arXiv preprint arXiv:2202.13010},
  year   = {2022}
}

Comments

5 pages, comments welcome

R2 v1 2026-06-24T09:54:35.151Z