algebraic geometry number theory
|Seminar series time:||Tuesday 15:00-16:30 in your time zone, UTC|
|Organizers:||Niven Achenjang*, Weixiao Lu*, Bjorn Poonen*, Vijay Srinivasan*, Xinyu Zhou|
|*contact for this listing|
STAGE (Seminar on Topics in Arithmetic, Geometry, Etc.) is a learning seminar in algebraic geometry and number theory, featuring speakers talking about work that is not their own. Talks will be at a level suitable for graduate students. Everyone is welcome.
Fall 2022 topic: Cohomological obstructions to rational points.
Some topics might take more or less time than allotted. If a speaker runs out of time on a certain date, that speaker might be allowed to borrow some time on the next date. So the topics below might not line up exactly with the dates below.
|Tue||Sep 27||15:00||Hao Peng||Brauer groups of schemes|
|Tue||Oct 04||15:00||Haoshuo Fu||The Hochschild-Serre spectral sequence|
|Tue||Oct 11||15:00||Weixiao Lu||Residue homomorphisms and examples of Brauer groups|
|Tue||Oct 18||15:00||Vijay Srinivasan||The Brauer-Manin obstruction|
|Tue||Oct 25||15:00||Aashraya Jha||The Brauer-Manin obstruction for conic bundles|
|Tue||Nov 01||15:00||Anne Larsen||Torsors of algebraic groups over a field|
|Tue||Nov 08||16:00||TBA||Torsors over finite fields, local fields, and global fields|
|Tue||Nov 15||16:00||Alice Lin||Torsors over a scheme|
|Tue||Nov 22||16:00||TBA||Unramified torsors|
|Tue||Nov 29||16:00||TBA||An example of descent|
|Tue||Dec 06||16:00||Niven Achenjang||The descent obstruction|
|Tue||Dec 13||16:00||TBA||The étale-Brauer obstruction and insufficiency of the obstructions|