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Mar 21, 2024

Sheaves on Stratified Spaces

Algebraic Geometry and Number Theory Seminar

Date: March 21, 2024 | 1:00 pm – 3:00 pm
Speaker: Jens Eberhardt, University of Bonn
Location: Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101)
Language: English

In this talk, we study constructible sheaves on spaces stratified via a Gm-action. We show how to understand the gluing data of these categories geometrically using hyperbolic localisation and the Drinfeld-Gaitsgory interpolation space. In particular, we apply this framework to flag varieties. Here, we explain how the gluing data can be understood explicitly in terms of a new multiplicative structure on open Richardson varieties, which were introduced in the work of Kazhdan-Lusztig. Lastly, we discuss applications in symplectic geometry and geometric representation theory.

This is joint work with Catharina Stroppel.

More Information:

Date:
March 21, 2024
1:00 pm – 3:00 pm

Speaker:
Jens Eberhardt, University of Bonn

Location:
Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101)

Language:
English

Contact:

Oosthuizen-Noczil Birgit

Email:
boosthui@ist.ac.at

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