2 papers
math.RT2026
Perverse sheaves on the semi-infinite flag variety and representations of the Frobenius kernel
Emilien Zabeth
We study a category of Iwahori-equivariant modular perverse sheaves on some avatar of the semi-infinite flag variety, by adapting the work of Arkhipov-Bezrukavnikov-Braverman-Gaits…
math.RT2026
Block decomposition via the geometric Satake equivalence
Emilien Zabeth
We give a new proof for the description of the blocks in the category of representations of a reductive algebraic group over a field of positive characteristic …