Decomposition of perverse sheaves on plane line arrangements
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DOI: 10.1080/00927872.2017.1399410
Abstract: ABSTRACT On the complement to a central plane line arrangement , a locally constant sheaf of complex vector spaces ℒa is associated to any multi-index a∈ℂn. Using the description of MacPherson and Vilonen of the… read more here.
Keywords: plane line; perverse sheaves; perverse; decomposition ... 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