On the geometry of stack-sorting simplices

Fuente: arXiv
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Autori principali: Ake, Cameron, Lewis, Spencer F., Louie, Amanda, Vindas-Meléndez, Andrés R.
Natura: Preprint
Pubblicazione: 2025
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author Ake, Cameron
Lewis, Spencer F.
Louie, Amanda
Vindas-Meléndez, Andrés R.
author_facet Ake, Cameron
Lewis, Spencer F.
Louie, Amanda
Vindas-Meléndez, Andrés R.
contents We show that all stack-sorting polytopes are simplices. Furthermore, we show that the stack-sorting polytopes generated from $Ln1$ permutations have relative volume 1. We establish an upper bound for the number of lattice points in a stack-sorting polytope. In particular, stack-sorting polytopes generated from $2Ln1$ permutations have no interior points.
format Preprint
id arxiv_https___arxiv_org_abs_2508_00219
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the geometry of stack-sorting simplices
Ake, Cameron
Lewis, Spencer F.
Louie, Amanda
Vindas-Meléndez, Andrés R.
Combinatorics
52B05, 05A15, 52B20
We show that all stack-sorting polytopes are simplices. Furthermore, we show that the stack-sorting polytopes generated from $Ln1$ permutations have relative volume 1. We establish an upper bound for the number of lattice points in a stack-sorting polytope. In particular, stack-sorting polytopes generated from $2Ln1$ permutations have no interior points.
title On the geometry of stack-sorting simplices
topic Combinatorics
52B05, 05A15, 52B20
url https://arxiv.org/abs/2508.00219