Unramified Brauer groups of finite simple groups of Lie type $A_{\ell}$

dc.creatorBogomolov, Fedor
dc.creatorMaciel, Jorge
dc.creatorPetrov, Tihomir
dc.date2002-11-12
dc.date2002-11-29
dc.date.accessioned2026-07-07T04:52:51Z
dc.date.available2026-07-07T04:52:51Z
dc.descriptionWe study the subgroup B_0(G) of H^2(G,Q/Z) consisting of all elements which have trivial restrictions to every Abelian subgroup of G. The group B_0(G) serves as the simplest nontrivial obstruction to stable rationality of algebraic varieties V/G where V is a faithful complex linear representation of the group G. We prove that B_0(G) is trivial for finite simple groups of Lie type A_{\ell}.
dc.description15 pages
dc.identifierhttps://arxiv.org/abs/math/0211193
dc.identifierhttp://arxiv.org/abs/math/0211193
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/65627
dc.subjectAlgebraic Geometry
dc.subjectPrimary 14E08, 14L24, 14L30; Secondary 20D06
dc.titleUnramified Brauer groups of finite simple groups of Lie type $A_{\ell}$
dc.typetext

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