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Mixed Perverse Sheaves on Flag Varieties for Coxeter Groups
(Canadian Mathematical Soc, 2020-02-09)
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 ...
A non perverse Soergel bimodule in type A
(Elsevier, 2017)
A basic question concerning indecomposable Soergel bimodules is to understand their en-domorphism rings. In characteristic zero all degree-zero endomorphisms are isomorphisms (afact proved by Elias and the second author) ...