Strata of Weyl groups

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Authors: G. Lusztig
Cited by: 0

Abstract

A Weyl group W is a union of strata (certain subsets which are unions of conjugacy classes) which are the nonempty fibres of a map from W to the set of irreducible representations of W. We give an explicit description of strata in terms of a certain modified centralizer group. We also define superstrata of a connected reductive group and state a conjecture about them.

Fields of Study & Subjects

Advanced Algebra and Geometry Finite Group Theory Research Advanced Combinatorial Mathematics

Publication details

Journal / source
arXiv (Cornell University)
Publication date
25 February 2026
Language
EN
Document type
Preprint