Modular perverse sheaves on flag varieties, II: Koszul duality and formality
Modular perverse sheaves on flag varieties, II: Koszul duality and formality
复制标题
旗帜品种上的模块化反常滑轮,II:科祖尔二元性和形式
DOI:
--
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
S. Riche
中科院分区:
文献类型:
--
作者:
Pramod N. Achar;S. Riche
Building on the theory of parity sheaves due to Juteau-Mautner-Williamson, we develop a formalism of "mixed modular perverse sheaves" for varieties equipped with a stratification by affine spaces. We then give two applications: (1) a "Koszul-type" derived equivalence relating a given flag variety to the Langlands dual flag variety, and (2) a formality theorem for the modular derived category of a flag variety (extending a previous result of Riche-Soergel-Williamson).
影响因子:
3.9
作者:
G. Williamson
通讯作者:
G. Williamson