STAGE Seminar

Tuesday, December 06, 2022 at 11:00am to 12:30pm

MIT , 2-449 77 Massachusetts Avenue, Cambridge, MA 02139

Speaker Niven Achenjang (MIT)

Title:  The descent obstruction

Topics:  Evaluation of torsors; Selmer set; weak Mordell-Weil theorem; descent obstruction.

Reference: Poonen, Rational points on varieties, Sections 8.4.1-8.4.5 and 8.4.7.




To access MIT buildings for a math seminar without MIT's CovidPass, you must be invited via a Tim Ticket ahead of time.  There are no exceptions; please make sure to plan accordingly before coming to campus.  To be able to activate the Tim Ticket, the attendee will need to submit an attestation about vaccination and health status and provide contact info.

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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Events By Interest


Events By Audience

MIT Community, Public

Events By School

School of Science


Bjorn Poonen, stage_sem, Francesc Fité, Hyuk Jun Kweon, Ziquan Yang, Zhiyu Zhang


Department of Mathematics


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