English

$C^*$-algebras associated with textile dynamical systems

Operator Algebras 2012-01-06 v2 Dynamical Systems

Abstract

A CC^*-symbolic dynamical system (A,ρ,Σ)({\cal A}, \rho, \Sigma) is a finite family {ρα}αΣ\{\rho_\alpha\}_{\alpha \in\Sigma} of endomorphisms of a CC^*-algebra A{\cal A} with some conditions. It yields a CC^*-algebra Oρ{\cal O}_\rho from an associated Hilbert CC^*-bimodule. In this paper, we will extend the notion of CC^*-symbolic dynamical system to CC^*-textile dynamical system (A,ρ,η,Σρ,Ση,κ)({\cal A}, \rho, \eta, {\Sigma^\rho}, {\Sigma^\eta}, \kappa) which consists of two CC^*-symbolic dynamical systems (A,ρ,Σρ)({\cal A}, \rho, {\Sigma^\rho}) and (A,η,Ση)({\cal A}, \eta, {\Sigma^\eta}) with certain commutation relations κ\kappa between their endomorphisms {ρα}αΣρ\{\rho_\alpha\}_{\alpha \in \Sigma^\rho} and {ηa}aΣη\{\eta_a \}_{a \in \Sigma^\eta}. CC^*-textile dynamical systems yield two-dimensional subshifts and CC^*-algebras Oρ,ηκ{\cal O}^{\kappa}_{\rho,\eta}. We will study the structure of the algebras Oρ,ηκ{\cal O}^\kappa_{\rho,\eta} and present its K-theory formulae.

Keywords

Cite

@article{arxiv.1106.5092,
  title  = {$C^*$-algebras associated with textile dynamical systems},
  author = {Kengo Matsumoto},
  journal= {arXiv preprint arXiv:1106.5092},
  year   = {2012}
}

Comments

This paper is a revised version, 54 pages

R2 v1 2026-06-21T18:27:30.058Z