Free-monodromic mixed tilting sheaves on flag varieties
Free-monodromic mixed tilting sheaves on flag varieties
复制标题
旗形品种上的自由单向混合倾斜滑轮
DOI:
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发表时间:
2017
期刊:
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通讯作者:
G. Williamson
中科院分区:
文献类型:
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作者:
Pramod N. Achar;Shotaro Makisumi;S. Riche;G. Williamson
In this paper we propose a construction of a monoidal category of "free-monodromic" tilting perverse sheaves on (Kac-Moody) flag varieties in the setting of the "mixed modular derived category" introduced by the first and third authors. This category shares most of the properties of their counterpart in characteristic 0, defined by Bezrukavnikov-Yun using certain pro-objects in triangulated categories. This construction is the main new ingredient in the forthcoming construction of a "modular Koszul duality" equivalence for constructible sheaves on flag varieties.