Computing K-theory and Ext for graph C*-algebras

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dc.creatorDrinen, D.
dc.creatorTomforde, M.
dc.date2001-03-06
dc.date.accessioned2026-07-07T04:40:31Z
dc.date.available2026-07-07T04:40:31Z
dc.descriptionK-theory and Ext are computed for the C*-algebra C*(E) of any countable directed graph E. The results generalize the K-theory computations of Raeburn and Szymanski and the Ext computations of Tomforde for row-finite graphs. As a consequence, it is shown that if A is a countable {0,1} matrix and E_A is the graph obtained by viewing A as a vertex matrix, then C*(E_A) is not necessarily Morita equivalent to the Exel-Laca algebra O_A.
dc.identifierhttps://arxiv.org/abs/math/0103036
dc.identifierhttp://arxiv.org/abs/math/0103036
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/61048
dc.subjectOperator Algebras
dc.subject46L55
dc.titleComputing K-theory and Ext for graph C*-algebras
dc.typetext

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