Contractible subgraphs and Morita equivalence of graph C-algebras

Contractible subgraphs and Morita equivalence of graph C-algebras

In this paper we describe an operation on directed graphs which produces a graph with fewer vertices, such that the C*-algebra of the new graph is Morita equivalent to that of the original graph. We unify and generalize several related constructions, notably delays and desingularizations of directed...

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Veröffentlicht in:arXiv.org 2004-04
Hauptverfasser: Crisp, Tyrone, Gow, Daniel
Format: Artikel
Sprache:eng
Schlagworte:
Apexes
Equivalence
Graph theory
Graphs
Logic programming
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Zusammenfassung:In this paper we describe an operation on directed graphs which produces a graph with fewer vertices, such that the C*-algebra of the new graph is Morita equivalent to that of the original graph. We unify and generalize several related constructions, notably delays and desingularizations of directed graphs.
ISSN:2331-8422