2 papers
math.RT2025
Quantization of the universal centralizer and central D-modules
Tom Gannon, Victor Ginzburg
The group scheme of universal centralizers of a complex reductive group has a quantization called the spherical nil-DAHA. The category of modules over this ring is equivalent,…
math.RT2025
Pointwise purity, derived Satake, and Symplectic duality
Victor Ginzburg
It has been known for a long time that Ext's between IC-sheaves may often be expressed in terms of Hom's between cohomology groups. We prove a more general result under weaker assu…