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Title:
Selmer groups and a Cassels-Tate pairing for finite Galois modules

Speaker:
Alexander Smith

Abstract:
I will discuss some new results on the structure of Selmer groups of finite Galois modules over global fields. Tate's definition of the Cassels-Tate pairing can be extended to a pairing on such Selmer groups with little adjustment, and many of the fundamental properties of the Cassels-Tate pairing can be reproved with new methods in this setting. I will also give a general definition of the theta/Mumford group and relate it to the structure of the Cassels-Tate pairing, generalizing work of Poonen and Stoll.

Link:
https://www.ias.edu/video/selmer-groups-and-cassels-tate-pairing-finite-galois-modules