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SUMMARY:Yixin Chen (Simon Fraser University)
DTSTART:20221201T233000Z
DTEND:20221202T003000Z
DTSTAMP:20260422T053756Z
UID:SFUQNTAG/79
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/SFUQNTAG/79/
 ">Two-torsion of the Brauer Group of an Elliptic Surface</a>\nby Yixin Che
 n (Simon Fraser University) as part of SFU NT-AG seminar\n\nLecture held i
 n K-9509.\n\nAbstract\nThe Brauer group of a variety encodes important ari
 thmetic information. For instance\, it plays an important role in the Brau
 er-Manin obstruction\, which governs the existence of rational points on m
 any varieties. In this thesis we describe the 2-torsion part of the Brauer
  group of certain elliptic surfaces. In particular\, we compute explicit r
 epresentatives of these elements in terms of quaternion algebras over the 
 function field of the surface.\n
LOCATION:https://researchseminars.org/talk/SFUQNTAG/79/
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