Tropical flag varieties
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DOI: 10.1016/j.aim.2021.107695
Abstract: Flag matroids are combinatorial abstractions of flags of linear subspaces, just as matroids are of linear subspaces. We introduce the flag Dressian as a tropical analogue of the partial flag variety, and prove a correspondence… read more here.
Keywords: flag matroids; tropical flag; flag varieties; flag ... See more keywords
Mixed Perverse Sheaves on Flag Varieties for Coxeter Groups
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DOI: 10.4153/cjm-2018-034-0
Abstract: Abstract In this paper we construct an abelian category of mixed perverse sheaves attached to any realization of a Coxeter group, in terms of the associated Elias–Williamson diagrammatic category. This construction extends previous work of… read more here.
Keywords: varieties coxeter; coxeter groups; mixed perverse; sheaves flag ... See more keywords