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SUMMARY:Louis Esser (UCLA)
DTSTART:20210308T210000Z
DTEND:20210308T220000Z
DTSTAMP:20260423T021406Z
UID:AGSAGS/22
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AGSAGS/22/">
 Non-torsion Brauer groups</a>\nby Louis Esser (UCLA) as part of American G
 raduate Student Algebraic Geometry Seminar\n\n\nAbstract\nThe classical de
 finition of the Brauer group of a field can be extended in different ways 
 to general schemes.  I'll explain two methods of doing so in order to moti
 vate the question: when is the cohomological Brauer group torsion?  After 
 reviewing some techniques for computing this group\, I'll present new exam
 ples of normal surfaces in positive characteristic with non-torsion Brauer
  group.  This talk is based on work from https://arxiv.org/abs/2102.01799.
 \n
LOCATION:https://researchseminars.org/talk/AGSAGS/22/
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