Séminaire Lotharingien de Combinatoire, 80B.67 (2018), 12 pp.

Mathias Lepoutre

Bijective Proof of the Rationality of the Generating Series of Higher-Genus Maps

Abstract. Bender and Canfield proved in 1991 that the generating series of maps in higher genus is a rational function of the generating series of planar maps. In this paper, we give the first bijective proof of this result. Our approach starts with the introduction of a canonical orientation that enables us to construct a bijection between $4$-valent bicolorable maps and a family of unicellular blossoming maps.


Received: November 14, 2017. Accepted: February 17, 2018. Final version: April 1, 2018.

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