Tuesday, December 13, 2022 at 11:00am to 12:30pm
MIT , 2-449 77 Massachusetts Avenue, Cambridge, MA 02139
Speaker: Xinyu Zhou (Boston University)
Title: The étale-Brauer obstruction and insufficiency of the obstructions
Topics: The étale-Brauer set; comparison with the descent set; insufficiency of the obstructions for a quadric bundle over a curve.
Reference: Poonen, Rational points on varieties, Sections 8.5.2-8.5.3 and 8.6.2.
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Finally, a reminder to all in-person participants, MIT covid policies must be adhered to: remember to keep your mask on while inside buildings, eating food is not allowed within lecture rooms, and if you are feeling sick on the day of the talk, please stay home!
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