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  1. Home > Articles & Issues >
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  3. A generalization of ...
Conference paper

A generalization of the quadrangulation relation to constellations and hypermaps

Wenjie Fang ORCID (1)
(1) École normale supérieure - Paris
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Imported on
November 20, 2016
Published on
December 31, 2012
Last modified on
April 1, 2025
Volume
DMTCS Proceedings vol. AS, 25th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2013)
Proceedings
DOI
10.46298/dmtcs.12789
License
https://about.hal.science/hal-authorisation-v1
French National Research Agency (ANR)
ANR-08-JCJC-0011
Interactions Of Combinatorics
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A generalization of the quadrangulation relation to constellations and hypermaps

Wenjie Fang ORCID (1)
(1) École normale supérieure - Paris
Abstract
English
Constellations and hypermaps generalize combinatorial maps, $\textit{i.e.}$ embedding of graphs in a surface, in terms of factorization of permutations. In this paper, we extend a result of Jackson and Visentin (1990) on an enumerative relation between quadrangulations and bipartite quadrangulations. We show a similar relation between hypermaps and constellations by generalizing a result in the original paper on factorization of characters. Using this enumerative relation, we recover a result on the asymptotic behavior of hypermaps of Chapuy (2009).
French
Les constellations et les hypercartes généralisent les cartes combinatoires, $\textit{i.e.}$ les plongements de graphe dans une surface, en terme de factorisation de permutations. Dans cet article, nous généralisons un résultat de Jackson et Visentin (1990) sur une relation énumérative entre les quadrangulations ordinaires et biparties. Nous montrons une relation similaire entre les constellations et les hypercartes en généralisant un résultat de factorisation de caractère. Avec cette relation, on retrouve un résultat sur le comportement asymptotique des hypercartes dans Chapuy (2009).
Keywords
  • [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM]
  • combinatorial maps
  • constellations
  • enumeration
  • character factorization
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