Conjugacy of local homeomorphisms via groupoids and C*-algebras

Becky Armstrong*, Kevin Aguyar Brix, Toke Meier Carlsen, Søren Eilers

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

5 Citations (Scopus)
18 Downloads (Pure)

Abstract

We investigate dynamical systems consisting of a locally compact Hausdorff space equipped with a partially defined local homeomorphism. Important examples of such systems include self-covering maps, one-sided shifts of finite type and, more generally, the boundary-path spaces of directed and topological graphs. We characterize the topological conjugacy of these systems in terms of isomorphisms of their associated groupoids and C*-algebras. This significantly generalizes recent work of Matsumoto and of the second- and third-named authors.

Original languageEnglish
JournalErgodic Theory and Dynamical Systems
Volume43
Issue number8
Pages (from-to)2516–2537
Number of pages22
ISSN0143-3857
DOIs
Publication statusPublished - 2023

Keywords

  • conjugacy
  • local homeomorphism
  • Deaconu-Renault system
  • groupoid
  • C*-algebra
  • TOPOLOGICAL ORBIT EQUIVALENCE
  • GRAPH ALGEBRAS
  • MARKOV SHIFTS
  • FLOW EQUIVALENCE
  • DIMENSION
  • SUBSHIFTS

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