Characteristic Classes Of Representations Of Lie Groups

Fuente: arXiv
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Autores principales: Joshi, Rohit, Spallone, Steven
Formato: Preprint
Publicado: 2026
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author Joshi, Rohit
Spallone, Steven
author_facet Joshi, Rohit
Spallone, Steven
contents An irreducible representation of a reductive Lie algebra, when restricted to a Cartan subalgebra, decomposes into weights with multiplicity. The first part of this paper outlines a procedure to compute symmetric polynomials (e.g., power sums) of this multiset of weights, as functions of the highest weight. Next, let G be a connected reductive complex algebraic group with maximal torus T. We express the restrictions of the Chern classes of irreducible representations of G to T, as polynomial functions in the highest weight. We do the same for Stiefel-Whitney classes of orthogonal representations.
format Preprint
id arxiv_https___arxiv_org_abs_2602_02145
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Characteristic Classes Of Representations Of Lie Groups
Joshi, Rohit
Spallone, Steven
Representation Theory
Differential Geometry
20G20, 55R40, 05E05
An irreducible representation of a reductive Lie algebra, when restricted to a Cartan subalgebra, decomposes into weights with multiplicity. The first part of this paper outlines a procedure to compute symmetric polynomials (e.g., power sums) of this multiset of weights, as functions of the highest weight. Next, let G be a connected reductive complex algebraic group with maximal torus T. We express the restrictions of the Chern classes of irreducible representations of G to T, as polynomial functions in the highest weight. We do the same for Stiefel-Whitney classes of orthogonal representations.
title Characteristic Classes Of Representations Of Lie Groups
topic Representation Theory
Differential Geometry
20G20, 55R40, 05E05
url https://arxiv.org/abs/2602.02145