Perturbation of $l^1$-copies and measure convergence in preduals of von Neumann algebras

dc.creatorPfitzner, Hermann
dc.date2000-03-24
dc.date.accessioned2026-07-07T04:34:25Z
dc.date.available2026-07-07T04:34:25Z
dc.descriptionLet L_1 be the predual of a von Neumann algebra with a finite faithful normal trace. We show that a bounded sequence in L_1 converges to 0 in measure if and only if each of its subsequences admits another subsequence which converges to 0 in norm or spans $l^1$ "almost isometrically". Furthermore we give a quantitative version of an essentially known result concerning the perturbation of a sequence spanning $l^1$ isomorphically in the dual of a C$^*$-algebra.
dc.descriptionsubmitted to J. of Op. Th
dc.identifierhttps://arxiv.org/abs/math/0003152
dc.identifierhttp://arxiv.org/abs/math/0003152
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/58895
dc.subjectFunctional Analysis
dc.subject46B20, 46L05
dc.titlePerturbation of $l^1$-copies and measure convergence in preduals of von Neumann algebras
dc.typetext

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