2003/02/12 by G. Lusztig, Lusztig, G.
Mathematics · #Advanced Algebra and Geometry #Algebraic Geometry and Number Theory #Algebraic structures and combinatorial models #math.RT
paper · pdf · doi:10.48550/arxiv.math/0302151
29 pages
arxiv created 2003/02/12 · arxiv updated 2009/11/30
We study a class of perverse sheaves on the variety of pairs (P,gUP) where P runs through a conjugacy class of parabolics in a connected reductive group G and gUP runs through G/UP. This is a generalization of the theory of character sheaves.