English

Cuntz-Krieger algebras associated with Hilbert $C^*$-quad modules of commuting matrices

Operator Algebras 2012-01-06 v1

Abstract

Let OHκA,B{\cal O}_{{\cal H}^{A,B}_\kappa} be the CC^*-algebra associated with the Hilbert CC^*-quad module arising from commuting matrices A,BA,B with entries in {0,1}\{0,1\}. We will show that if the associated tiling space XA,BκX_{A,B}^\kappa is transitive, the CC^*-algebra OHκA,B{\cal O}_{{\cal H}^{A,B}_\kappa} is simple and purely infinite. In particulr, for two positive integers N,MN,M, the KK-groups of the simple purely infinite CC^*-algebra OHκ[N],[M]{\cal O}_{{\cal H}^{[N],[M]}_\kappa} are computed by using the Euclidean algorithm.

Keywords

Cite

@article{arxiv.1201.1056,
  title  = {Cuntz-Krieger algebras associated with Hilbert $C^*$-quad modules of commuting matrices},
  author = {Kengo Matsumoto},
  journal= {arXiv preprint arXiv:1201.1056},
  year   = {2012}
}

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19 pages