Purely Atomic Representations of Higher-Rank Graph C -Algebras

Carla Farsi, Elizabeth Gillaspy, Palle Jorgensen, Sooran Kang, Judith Packer

Research output: Contribution to journalArticlepeer-review

Abstract

We study purely atomic representations of C-algebras associated to row-finite and source-free higher-rank graphs. We describe when purely atomic representations are unitarily equivalent and we give necessary and sufficient conditions for a purely atomic representation to be irreducible in terms of the associated projection valued measures. We also investigate the relationship between purely atomic representations, monic representations and permutative representations, and we describe when a purely atomic representation admits a decomposition consisting of permutative representations.

Original languageEnglish
Article number67
JournalIntegral Equations and Operator Theory
Volume90
Issue number6
DOIs
StatePublished - Dec 1 2018

Keywords

  • Higher-rank graphs
  • Irreducible representations
  • Permutative representations
  • Projection-valued measure
  • Purely atomic representations

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