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Main Authors: Chan, Patrick, Tingley, Peter
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2508.04804
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author Chan, Patrick
Tingley, Peter
author_facet Chan, Patrick
Tingley, Peter
contents Building on our previous work in rank two, we use quiver varieties to give a combinatorial upper bound on dimensions of certain imaginary root spaces for rank 3 symmetric Kac-Moody algebras. We describe an explicit method for extracting combinatorics when the Dynkin diagram is bipartite (i.e. two of the nodes are not connected). As in rank two we believe these bounds are quite tight and we give computational evidence to this effect, although there is more error in rank 3 than in rank 2.
format Preprint
id arxiv_https___arxiv_org_abs_2508_04804
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quiver varieties and root multiplicities in rank 3
Chan, Patrick
Tingley, Peter
Representation Theory
17B67
Building on our previous work in rank two, we use quiver varieties to give a combinatorial upper bound on dimensions of certain imaginary root spaces for rank 3 symmetric Kac-Moody algebras. We describe an explicit method for extracting combinatorics when the Dynkin diagram is bipartite (i.e. two of the nodes are not connected). As in rank two we believe these bounds are quite tight and we give computational evidence to this effect, although there is more error in rank 3 than in rank 2.
title Quiver varieties and root multiplicities in rank 3
topic Representation Theory
17B67
url https://arxiv.org/abs/2508.04804