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SUMMARY:John Christian Ottem (Oslo)
DTSTART:20250307T124000Z
DTEND:20250307T134000Z
DTSTAMP:20260423T021430Z
UID:OBAGS/60
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/OBAGS/60/">F
 ano varieties with torsion in the third cohomology group</a>\nby John Chri
 stian Ottem (Oslo) as part of ODTU-Bilkent Algebraic Geometry Seminars\n\n
 \nAbstract\nI will explain a construction of Fano varieties with torsion i
 n their third cohomology group. The examples are constructed as double cov
 ers of linear sections of rank loci of symmetric matrices\, and can be see
 n as higher-dimensional analogues of the Artin– Mumford threefold. As an
  application\, we will answer a question of Voisin on the coniveau and str
 ong coniveau filtrations of rationally connected varieties.\n
LOCATION:https://researchseminars.org/talk/OBAGS/60/
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