Dimension des fibres de Springer affines pour les groupes

2012/03/05 by Bouthier, Alexis · 1 citation
#Algebraic Geometry (math.AG) #FOS: Mathematics #Group Theory (math.GR) #Representation Theory (math.RT)

paper · doi:10.48550/arxiv.1203.0975

Abstract

Following Steinberg, we construct an adjoint quotient for the Vinberg semi-group and a section to this quotient. Then, after Ngô, we show the existence of a regular centralizer on it and use it to compute the affine Springer fibers for groups.

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• Perversity of coinvariants of affine Springer sheaves

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