Elliptic quantum groups and affine Grassmannians over an elliptic curve
Gufang Zhao - University of Melbourne
Ganev, I. (2018). Beilinson-Bernstein localization via the wonderful compactification. Perimeter Institute. https://pirsa.org/18010065
Ganev, Iordan. Beilinson-Bernstein localization via the wonderful compactification. Perimeter Institute, Jan. 22, 2018, https://pirsa.org/18010065
@misc{ pirsa_PIRSA:18010065,
doi = {10.48660/18010065},
url = {https://pirsa.org/18010065},
author = {Ganev, Iordan},
keywords = {Mathematical physics},
language = {en},
title = {Beilinson-Bernstein localization via the wonderful compactification},
publisher = {Perimeter Institute},
year = {2018},
month = {jan},
note = {PIRSA:18010065 see, \url{https://pirsa.org}}
}
We explain how a doubled version of the Beilinson-Bernstein localization functor can be understood using the geometry of the wonderful compactification of a group. Specifically, bimodules for the Lie algebra give rise to monodromic D-modules on the horocycle space, and to filtered D-modules on the group that respect a certain matrix coefficients filtration. These two categories of D-modules are related via an associated graded construction in a way compatible with localization, Verdier specialization, and additional structures. This is joint work with David Ben-Zvi and David Nadler.