Mathematics – Operator Algebras
Scientific paper
2011-11-14
Mathematics
Operator Algebras
48 pages
Scientific paper
A $C^*$-textile dynamical system $({\cal A}, \rho,\eta,\Sigma^\rho,\Sigma^\eta, \kappa)$ connsists of a unital $C^*$-algebra ${\cal A}$, two families of endomorphisms ${\rho_\alpha}_{\alpha \in \Sigma^\rho}$ and ${\eta_a}_{a \in \Sigma^\eta}$ of ${\cal A}$ and certain commutation relations $\kappa$ among them. It yields a two-dimensional subshift and multi structure of Hilbert $C^*$-bimodules, which we call a Hilbert $C^*$-quad module. We introduce a $C^*$-algebra from the Hilbert $C^*$-quad module as a two-dimensional analogue of Pimsner's construction of $C^*$-algebras from Hilbert $C^*$-bimodules. We study the $C^*$-algebras defined by the Hilbert $C^*$-quad modules and prove that they have universal properties subject to certain operator relations. We also present its examples arising from commuting matrices.
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