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Bibliographic Details
Main Authors: Mamede, Ricardo, Santos, José Luis, Soares, Diogo
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2601.09395
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author Mamede, Ricardo
Santos, José Luis
Soares, Diogo
author_facet Mamede, Ricardo
Santos, José Luis
Soares, Diogo
contents In this paper, we provide an upper bound for the number of one-element commutation classes of a permutation, that is, the number of reduced words in which no commutation can be applied. Using this upper bound, we prove a conjecture that relates the number of reduced words with the number of commutation classes of a permutation.
format Preprint
id arxiv_https___arxiv_org_abs_2601_09395
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Maximum number of one-element commutation classes of a permutation
Mamede, Ricardo
Santos, José Luis
Soares, Diogo
Combinatorics
In this paper, we provide an upper bound for the number of one-element commutation classes of a permutation, that is, the number of reduced words in which no commutation can be applied. Using this upper bound, we prove a conjecture that relates the number of reduced words with the number of commutation classes of a permutation.
title Maximum number of one-element commutation classes of a permutation
topic Combinatorics
url https://arxiv.org/abs/2601.09395