The Laplacian Masa in a Free Group Factor

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dc.creatorSinclair, Allan
dc.creatorSmith, Roger
dc.date2001-07-10
dc.date.accessioned2026-07-07T04:42:33Z
dc.date.available2026-07-07T04:42:33Z
dc.descriptionThe Laplacian (or radial) masa in a free group factor is generated by the sum of the generators and their inverses. We show that such a masa B is strongly singular and has Popa invariant delta(B) = 1. This is achieved by proving that the conditional expectation onto B is an asymptotic homomorphism. We also obtain similar results for the free product of discrete groups, each of which contains an element of infinite order.
dc.description16 pages, latex file
dc.identifierhttps://arxiv.org/abs/math/0107076
dc.identifierhttp://arxiv.org/abs/math/0107076
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/61828
dc.subjectOperator Algebras
dc.subject46L05
dc.titleThe Laplacian Masa in a Free Group Factor
dc.typetext

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