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  1. Home > Articles & Issues >
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  3. Maximal 0-1-fillings ...
Conference paper

Maximal 0-1-fillings of moon polyominoes with restricted chain lengths and rc-graphs

Martin Rubey (1)
(1) Institut für Algebra, Zahlentheorie und Diskrete Mathematik
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Imported on
January 31, 2017
Published on
December 31, 2010
Last modified on
March 31, 2025
Volume
DMTCS Proceedings vol. AO, 23rd International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2011)
Proceedings
DOI
10.46298/dmtcs.2957
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https://about.hal.science/hal-authorisation-v1
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Maximal 0-1-fillings of moon polyominoes with restricted chain lengths and rc-graphs

Martin Rubey (1)
(1) Institut für Algebra, Zahlentheorie und Diskrete Mathematik
Abstract
English
We show that maximal 0-1-fillings of moon polynomials, with restricted chain lengths, can be identified with certain rc-graphs, also known as pipe dreams. In particular, this exhibits a connection between maximal 0-1-fillings of Ferrers shapes and Schubert polynomials. Moreover, it entails a bijective proof showing that the number of maximal fillings of a stack polyomino $S$ with no north-east chains longer than $k$ depends only on $k$ and the multiset of column heights of $S$. Our main contribution is a slightly stronger theorem, which in turn leads us to conjecture that the poset of rc-graphs with covering relation given by generalised chute moves is in fact a lattice.
French
Nous démontrons que les remplissages maximaux avec 0 et 1 des polyominos $L$-convexes, avec longueurs de chaînes restreintes, peuvent être identifiés avec certains $\textit{rc-graphes}$, également connus sous le nom de $\textit{pipe dreams}$. En particulier, ceci montre un lien entre ces remplissages d'un diagramme de Ferrers et les polynômes de Schubert. On en déduit en outre une preuve bijective du fait que le nombre de remplissages maximaux d'un $\textit{stack polyomino}$ $S$, avec longueurs de chaînes bornées par un entier $k$, dépend seulement de $k$ et du multi-ensemble des tailles des colonnes de $S$. Notre contribution principale est un énoncé un peu plus fort, qui nous mène à conjecturer que l'ensemble ordonné (poset) des $\textit{rc-graphes}$ est en fait un treillis.
Keywords
  • [MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO]
  • [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM]
  • multitriangulations
  • rc-graphs
  • Edelman-Greene insertion
  • Schubert polynomials
Cited by

Source: OpenCitations

  • Multitriangulations, Pseudotriangulations and Primitive Sorting Networks

    Discrete & Computational Geometry

    Authors : Vincent Pilaud ORCID, Michel Pocchiola

    Journal reference : Volume 48, 2012, pp. 142-191

    DOI : 10.1007/s00454-012-9408-6
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