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Main Authors: DeBacker, Stephen, Haley, Jacob
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2409.09255
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author DeBacker, Stephen
Haley, Jacob
author_facet DeBacker, Stephen
Haley, Jacob
contents Suppose $\mathfrak{g}$ is a semisimple complex Lie algebra and $\mathfrak{h}$ is a Cartan subalgebra of $\mathfrak{g}$. To the pair $(\mathfrak{g},\mathfrak{h})$ one can associate both a Weyl group and a set of Kac diagrams. There is a natural map from the set of elliptic conjugacy classes in the Weyl group to the set of Kac diagrams. In both this setting and the twisted setting, this paper (a) shows that this map is injective and (b) explicitly describes this map's image.
format Preprint
id arxiv_https___arxiv_org_abs_2409_09255
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Kac Diagrams for Elliptic Weyl Group Elements
DeBacker, Stephen
Haley, Jacob
Representation Theory
Primary 20G07, Secondary 20F55, 20E45
Suppose $\mathfrak{g}$ is a semisimple complex Lie algebra and $\mathfrak{h}$ is a Cartan subalgebra of $\mathfrak{g}$. To the pair $(\mathfrak{g},\mathfrak{h})$ one can associate both a Weyl group and a set of Kac diagrams. There is a natural map from the set of elliptic conjugacy classes in the Weyl group to the set of Kac diagrams. In both this setting and the twisted setting, this paper (a) shows that this map is injective and (b) explicitly describes this map's image.
title Kac Diagrams for Elliptic Weyl Group Elements
topic Representation Theory
Primary 20G07, Secondary 20F55, 20E45
url https://arxiv.org/abs/2409.09255