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arXiv:1805.06581 [math.CO]AbstractReferencesReviewsResources

Classification of Coxeter groups with finitely many elements of $\mathbf{a}$-value 2

R. M. Green, Tianyuan Xu

Published 2018-05-17Version 1

We consider Lusztig's $\mathbf{a}$-function on Coxeter groups (in the equal parameter case) and classify all Coxeter groups with finitely many elements of $\mathbf{a}$-value 2 in terms of Coxeter diagrams.

Comments: 34 pages; comments welcome
Categories: math.CO, math.QA, math.RT
Subjects: 20F55
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