English

Limit C*-algebras associated with an automorphism

Operator Algebras 2007-05-23 v1

Abstract

We present and study C*-algebras generated by "periodic weighted creation operators" on the Fock space associated with an automorphism α\alpha on a C*-algebra AA. These algebras can be viewed as generalized Bunce-Deddens algebras associated with the automorphism and can be written as a certain direct limit. We prove a crossed product presentation for such an algebra and find a necessary and sufficient condition for it to be simple. In the case where the automorphism is induced by an irrational rotation (on C(T)C(\mathbb{T})) we compute the K-theory groups and obtain a complete classification of these algebras.

Keywords

Cite

@article{arxiv.math/0312089,
  title  = {Limit C*-algebras associated with an automorphism},
  author = {Baruch Solel},
  journal= {arXiv preprint arXiv:math/0312089},
  year   = {2007}
}

Comments

Latex file, To appear in Math. Scand

R2 v1 2026-07-22T17:00:24.074Z