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Hurwitz Orbits on Reflection Factorizations of Parabolic Quasi-Coxeter Elements
Journal article   Peer reviewed

Hurwitz Orbits on Reflection Factorizations of Parabolic Quasi-Coxeter Elements

Theo Douvropoulos and Joel Brewster Lewis
The Electronic journal of combinatorics, Vol.31(1)
01/26/2024

Abstract

Mathematics, Applied Science & Technology Mathematics Physical Sciences
We prove that two reflection factorizations of a parabolic quasi-Coxeter element in a finite Coxeter group belong to the same Hurwitz orbit if and only if they generate the same subgroup and have the same multiset of conjugacy classes. As a lemma, we classify the finite Coxeter groups for which every reflection generating set that is minimal under inclusion is also of minimum size.
url
https://doi.org/10.37236/11787View
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