Grassmannians and Koszul duality
Representation Theory
2014-06-17 v2
Abstract
Let be a partial flag variety, stratified by orbits of the Borel. We give a criterion for the category of modular perverse sheaves to be equivalent to modules over a Koszul ring. This implies that modular category is governed by a Koszul-algebra in small examples.
Cite
@article{arxiv.1311.1975,
title = {Grassmannians and Koszul duality},
author = {Jan Weidner},
journal= {arXiv preprint arXiv:1311.1975},
year = {2014}
}
Comments
35 pages