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  1. Home > Articles & Issues >
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  3. Stokes posets and se ...
Article

Stokes posets and serpent nests

Frédéric Chapoton ORCID (1)
(1) Institut de Recherche Mathématique Avancée
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Imported on
December 2, 2016
Published on
December 2, 2016
Last modified on
March 31, 2025
Volume 18
vol. 18:3
Combinatorics
DOI
10.46298/dmtcs.1382
License
https://about.hal.science/hal-authorisation-v1
French National Research Agency (ANR)
ANR-12-BS01-0017
Combinatoire Algébrique, Résurgence, Moules et Applications
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Stokes posets and serpent nests

Frédéric Chapoton ORCID (1)
(1) Institut de Recherche Mathématique Avancée
Abstract
English
We study two different objects attached to an arbitrary quadrangulation of a regular polygon. The first one is a poset, closely related to the Stokes polytopes introduced by Baryshnikov. The second one is a set of some paths configurations inside the quadrangulation, satisfying some specific constraints. These objects provide a generalisation of the existing combinatorics of cluster algebras and nonnesting partitions of type A.
French
On étudie deux objets attachés à une quadrangulation quelconque d'un polygone régulier. Le premier objet est un ensemble partiellement ordonné, fortement lié aux polytopes de Stokes introduits par Barysknikov. Le second est un ensemble de configurations de chemins dans la quadrangulation. Ces deux objets généralisent respectivement les aspects combinatoires des algèbres amassées et des partitions non-emboitées de type A.
Keywords
  • MSC: 05E 06A11 13F60
  • [MATH.MATH-RT]Mathematics [math]/Representation Theory [math.RT]
  • [MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO]
  • [MATH.MATH-QA]Mathematics [math]/Quantum Algebra [math.QA]
  • poset
  • Tamari lattice
  • quadrangulation
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