On Popa's Cocycle Superrigidity Theorem

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dc.creatorFurman, Alex
dc.date2006-08-14
dc.date2006-09-09
dc.date.accessioned2026-07-07T07:21:47Z
dc.date.available2026-07-07T07:21:47Z
dc.descriptionThese notes contain an Ergodic-theoretic account of the Cocycle Superrigidity Theorem recently discovered by Sorin Popa. We state and prove a relative version of the result, discuss some applications to measurable equivalence relations, and point out that Gaussian actions (of ``rigid'' groups) satisfy the assumptions of Popa's theorem.
dc.descriptionv.2: slight changes in the presentation, (some) typos corrected, wq-normal subgroups added. 35 pages
dc.identifierhttps://arxiv.org/abs/math/0608364
dc.identifierhttp://arxiv.org/abs/math/0608364
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/115424
dc.subjectDynamical Systems
dc.subjectOperator Algebras
dc.subject37A20
dc.titleOn Popa's Cocycle Superrigidity Theorem
dc.typetext

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