English

Rokhlin Dimension and Inductive Limit Actions on AF-algebras

Operator Algebras 2026-02-13 v2 Functional Analysis

Abstract

Given a separable, AF-algebra A and an inductive limit action on A of a finitely generated abelian group with finite Rokhlin dimension with commuting towers, we give a local description of the associated crossed product C*-algebra. In particular, when A is unital and αAut(A)\alpha \in Aut(A) is approximately inner and has the Rokhlin property, we conclude that AαZA \rtimes_{\alpha} \mathbb{Z} is an AT\mathbb{T}-algebra.

Keywords

Cite

@article{arxiv.2405.17380,
  title  = {Rokhlin Dimension and Inductive Limit Actions on AF-algebras},
  author = {Sureshkumar M and Prahlad Vaidyanathan},
  journal= {arXiv preprint arXiv:2405.17380},
  year   = {2026}
}

Comments

Accepted in Annals of Functional Analysis. Corollary 1.8 and its applications in Theorem 2.5 have been improved in response to the referee's comments