Approximation Properties for Crossed Products by Actions and Coactions

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dc.creatorNilsen, May
dc.creatorSmith, Roger
dc.date2001-07-10
dc.date.accessioned2026-07-07T04:42:33Z
dc.date.available2026-07-07T04:42:33Z
dc.descriptionWe investigate approximation properties for $C^*$-algebras and their crossed products by actions and coactions by locally compact groups. We show that Haagerup's approximation constant is preserved for crossed products by arbitrary amenable groups, and we show why this is not always true in the non-amenable case. We also examine similar questions for other forms of the approximation property.
dc.description17 pages, latex file, Internat. J. Math. to appear
dc.identifierhttps://arxiv.org/abs/math/0107074
dc.identifierhttp://arxiv.org/abs/math/0107074
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/61827
dc.subjectOperator Algebras
dc.subject46L10
dc.titleApproximation Properties for Crossed Products by Actions and Coactions
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