Sophie Burrill ; Sergi Elizalde ; Marni Mishna ; Lily Yen - Generating trees for partitions and permutations with no k-nestings

dmtcs:3050 - Discrete Mathematics & Theoretical Computer Science, January 1, 2012, DMTCS Proceedings vol. AR, 24th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2012) - https://doi.org/10.46298/dmtcs.3050
Generating trees for partitions and permutations with no k-nestingsConference paper

Authors: Sophie Burrill 1; Sergi Elizalde ORCID2; Marni Mishna 1; Lily Yen 1,3

  • 1 Department of Mathematics [Burnaby]
  • 2 Department of Mathematics [Dartmouth]
  • 3 Department of Mathematics and Statistics [Capilano]

[en]
We describe a generating tree approach to the enumeration and exhaustive generation of k-nonnesting set partitions and permutations. Unlike previous work in the literature using the connections of these objects to Young tableaux and restricted lattice walks, our approach deals directly with partition and permutation diagrams. We provide explicit functional equations for the generating functions, with k as a parameter.

[fr]
Nous décrivons une approche, basée sur l'utilisation d'arbres de génération, pour énumération et la génération exhaustive de partitions et permutations sans k-emboîtement. Contrairement aux travaux antérieurs qui reposent sur un lien entre ces objets, tableaux de Young et familles de chemins dans des treillis, notre approche traite directement partitions et diagrammes de permutations. Nous fournissons des équations fonctionnelles explicites pour les séries génératrices, avec k en tant que paramètre.


Volume: DMTCS Proceedings vol. AR, 24th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2012)
Section: Proceedings
Published on: January 1, 2012
Imported on: January 31, 2017
Keywords: [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM], [en] nonnesting, partition, permutation, generating tree
Funding:
    Source : OpenAIRE Graph
  • Funder: Natural Sciences and Engineering Research Council of Canada
  • Pattern avoidance in dynamical systems; Funder: National Science Foundation; Code: 1001046

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