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SUMMARY:Constantin Shramov (Higher School of Economics)
DTSTART:20201208T153000Z
DTEND:20201208T163000Z
DTSTAMP:20260423T024612Z
UID:EDGE2020/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/EDGE2020/6/"
 >Birational automorphisms of Severi-Brauer surfaces.</a>\nby Constantin Sh
 ramov (Higher School of Economics) as part of EDGE 2020 (online)\n\n\nAbst
 ract\nIn 2009\, I.Dolgachev and V.Iskovskikh classified finite subgroups o
 f the birational automorphism groups of the projective plane over an algeb
 raically closed field of characteristic zero. I will explain an analog of 
 their result for birational automorphism groups of Severi-Brauer surfaces\
 , i.e.\, surfaces that become isomorphic to the projective plane after pas
 sing to the algebraic closure of the base field. The classification is obt
 ained by using geometric techniques based on the Minimal Model Program tog
 ether with some theory of central simple algebras.\n
LOCATION:https://researchseminars.org/talk/EDGE2020/6/
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