4 papers
Exotic t-structure for partial resolutions of the nilpotent cone
Kei Yuen Chan, Laura Rider, Paul Sobaje
We define and study an exotic t-structure on the bounded derived category of equivariant coherent sheaves on partial resolutions of the nilpotent cone.
Nearby cycles for parity sheaves on a divisor with simple normal crossings
Pramod N. Achar, Laura Rider
The first author recently introduced a "nearby cycles formalism" in the framework of chain complexes of parity sheaves. In this paper, we compute this functor in two related settin…
An Iwahori-Whittaker model for the Satake category
Roman Bezrukavnikov, Dennis Gaitsgory, Ivan Mirković +2
In this paper we prove, for G a connected reductive algebraic group satisfying a technical assumption, that the Satake category of G (with coefficients in a finite field, a finite…
Formality and Lusztig's generalized Springer correspondence
Laura Rider, Amber Russell
We prove a derived equivalence between each block of the derived category of sheaves on the nilpotent cone and the category of differential graded modules over a degeneration of Lu…