Nadler's Geometric Representation Theory Seminar (2024 Spring)

Topic: Sheaves of categories and 1-affineness
Meeting time: Thursdays 12:30pm-2:00pm
Room: 939 Evans Hall (UC Berkeley)
Organizers: Ansuman Bardalai and Daigo Ito

Schedule

1/25 David Nadler Introduction to sheaves of categories and 1-affineness
2/1 No meeting
2/8 Peter Haine Monoidal categories and module categories
2/15 Peter Haine Actions of monoidal categories and quotients
2/22 Peter Haine More on monoidal categories
2/29 Ansuman Bardalai Quasi-coherent sheaves and flat descent
3/7 Ansuman Bardalai Sheaf of categories
3/14 German Stefanich Application of 1-affineness and Tannakian duality Email an organizer for a recording
3/21 Ansuman Bardalai Why BG is 1-affine
3/28 Spring break
4/4 Jeremy Taylor 1-affineness of qcqs schemes
4/11 Jeremy Taylor 1-affineness of qcqs schemes (continued)
4/18 Jeremy Taylor Non-1-affineness of the classifying stack of an abelian variety
4/25 David Nadler Singular support for sheaves of categories

Note

Check here for a note taken by John Nolan.

Reference

Dennis Gaitsgory, Sheaves of categories and the notion of 1-affineness
Germán Stefanich, Tannaka duality and 1-affineness