Heike Harenbrock

Mittagsseminar zur Arithmetik: Kestutis Cesnavicius (Paris): The affine Grassmannian as a presheaf quotient

Friday, 09.06.2023 10:15 im Raum SRZ 216/217

Mathematik und Informatik

The affine Grassmannian of a reductive group G is usually defined as the étale sheafification of the quotient of the loop group LG by the positive loop subgroup. I will discuss various triviality results for G-torsors which imply that this sheafification is often not necessary.

Angelegt am 22.03.2023 von Heike Harenbrock
Geändert am 15.05.2023 von Heike Harenbrock
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