English

Aperiodicity and the primitive ideal space of a row-finite $k$-graph $C^*$-algebra

Operator Algebras 2012-07-31 v2

Abstract

We describe the primitive ideal space of the CC^{\ast}-algebra of a row-finite kk-graph with no sources when every ideal is gauge invariant. We characterize which spectral spaces can occur, and compute the primitive ideal space of two examples. In order to do this we prove some new results on aperiodicity. Our computations indicate that when every ideal is gauge invariant, the primitive ideal space only depends on the 1-skeleton of the kk-graph in question.

Keywords

Cite

@article{arxiv.1105.1208,
  title  = {Aperiodicity and the primitive ideal space of a row-finite $k$-graph $C^*$-algebra},
  author = {Sooran Kang and David Pask},
  journal= {arXiv preprint arXiv:1105.1208},
  year   = {2012}
}

Comments

23 pages. Updated 30th June, 2012