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SUMMARY:Sebastian Bartling (Sorbonne Université)
DTSTART:20210303T143000Z
DTEND:20210303T153000Z
DTSTAMP:20260423T004136Z
UID:Rega/11
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Rega/11/">Br
 (X)=Br´(X) for separated unions of two affines (after Gabber and Lieblich
 )</a>\nby Sebastian Bartling (Sorbonne Université) as part of RéGA (Rés
 eau des étudiants en Géométrie Algébrique)\n\n\nAbstract\nGabber prove
 d in his thesis the following beautiful theorem: If $X$ is\nthe separated 
 union of two affine schemes\, then the Brauer group\nagrees with the cohom
 ological Brauer group. Later Lieblich gave in his\nthesis a rather slick n
 ew proof using the theory of twisted sheaves.\nIn this talk I want to sket
 ch Lieblich’s proof and if time permits\nI´ll explain why I got interes
 ted in this statement.\n
LOCATION:https://researchseminars.org/talk/Rega/11/
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