no. 5
Cardinality of Rauzy classes
[Cardinalités des classes de Rauzy]
Delecroix, Vincent1
1 Institut de Mathématiques de Luminy (UMR 6206) Campus de Luminy, Case 907 13288 MARSEILLE Cedex 9
Annales de l'Institut Fourier, Tome 63 (2013) no. 5, pp. 1651-1715.

Les classes de Rauzy forment des partitions de l’ensemble des permutations irréductibles. Elles ont été introduites par G. Rauzy dans l’étude d’un algorithme de renormalisation des échanges d’intervalles. Nous démontrons une formule explicite pour la cardinalité de chaque classe de Rauzy. La preuve que nous développons utilise une interprétation géométrique des permutations et des classes de Rauzy en termes de surfaces de translation et d’espace de modules.

Rauzy classes form a partition of the set of irreducible permutations. They were introduced as part of a renormalization algorithm for interval exchange transformations. We prove an explicit formula for the cardinality of each Rauzy class. Our proof uses a geometric interpretation of permutations and Rauzy classes in terms of translation surfaces and moduli spaces.

DOI : 10.5802/aif.2811
Classification : 05A15, 37A05, 37B10
Keywords: Rauzy classes, Rauzy induction, interval exchange transformations, irreducible permutations, indecomposable permutations
Mot clés : classes de Rauzy, induction de Rauzy, échanges d’intervalles, permutation irréductible, permutation indécomposable

Delecroix, Vincent 1

1 Institut de Mathématiques de Luminy (UMR 6206) Campus de Luminy, Case 907 13288 MARSEILLE Cedex 9 
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Delecroix, Vincent. Cardinality of Rauzy classes. Annales de l'Institut Fourier, Tome 63 (2013) no. 5, pp. 1651-1715. doi : 10.5802/aif.2811. https://aif.centre-mersenne.org/articles/10.5802/aif.2811/

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