English

$C^*$-algebras arising from Dyck systems of topological Markov chains

Operator Algebras 2007-05-23 v1 Dynamical Systems

Abstract

Let AA be an N×NN \times N irreducible matrix with entries in {0,1}\{0,1\}. We define the topological Markov Dyck shift DAD_A to be a nonsofic subshift consisting of the 2N2N brackets (1,...,(N,)1,...,)N(_1,...,(_N,)_1,...,)_N with both standard bracket rule and Markov chain rule coming from AA. The subshift is regarded as a subshift defined by the canonical generators S1,...,SN,S1,...,SNS_1^*,..., S_N^*, S_1,..., S_N of the Cuntz-Krieger algebra \CalOA{\Cal O}_A. We construct an irreducible λ\lambda-graph system LCh(DA){{\frak L}^{Ch(D_A)}} that presents the subshift DAD_A so that we have an associated simple purely infinite CC^*-algebra \CalOLCh(DA){\Cal O}_{{\frak L}^{Ch(D_A)}}. We prove that \CalOLCh(DA){\Cal O}_{{\frak L}^{Ch(D_A)}} is a universal unique CC^*-algebra subject to some operator relations among 2N2N generating partial isometries. Some examples are presented such that they are not stably isomorphic to any Cuntz-Krieger algebra.

Keywords

Cite

@article{arxiv.math/0607518,
  title  = {$C^*$-algebras arising from Dyck systems of topological Markov chains},
  author = {Kengo Matsumoto},
  journal= {arXiv preprint arXiv:math/0607518},
  year   = {2007}
}

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21pages