English

Group Actions on Product Systems

Operator Algebras 2022-12-23 v1

Abstract

We introduce the concept of crossed product of a product system by a locally compact group. We prove that the crossed product of a row-finite and faithful product system by an amenable group is also a row-finite and faithful product system. We illustrate with examples related to group actions on kk-graphs and to higher rank Doplicher-Roberts algebras.

Keywords

Cite

@article{arxiv.2212.11441,
  title  = {Group Actions on Product Systems},
  author = {Valentin Deaconu and Leonard Huang},
  journal= {arXiv preprint arXiv:2212.11441},
  year   = {2022}
}
R2 v1 2026-06-28T07:48:03.543Z