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20242026
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math.CO2026

Enumeration of maps with tight boundaries and the Zhukovsky transformation

Jérémie Bouttier, Emmanuel Guitter, Grégory Miermont

We consider maps with tight boundaries, i.e. maps whose boundaries have minimal length in their homotopy class, and discuss the properties of their generating functions $T^{(g)}_{\…

math.CO2025

The slice decomposition of planar hypermaps

Marie Albenque, Jérémie Bouttier

The slice decomposition is a bijective method for enumerating planar maps (graphs embedded in the sphere) with control over face degrees. In this paper, we extend the slice decompo…

math.CO2024

Enumeration of planar bipartite tight irreducible maps

Jérémie Bouttier, Emmanuel Guitter, Hugo Manet

We consider planar bipartite maps which are both tight, i.e. without vertices of degree , and -irreducible, i.e. such that each cycle has length at least and such that…

math.CO2024

On quasi-polynomials counting planar tight maps

Jérémie Bouttier, Emmanuel Guitter, Grégory Miermont

A tight map is a map with some of its vertices marked, such that every vertex of degree is marked. We give an explicit formula for the number of plana…

math.CO2024

Multicritical Schur measures and higher-order analogues of the Tracy-Widom distribution

Dan Betea, Jérémie Bouttier, Harriet Walsh

We introduce multicritical Schur measures, which are probability laws on integer partitions which give rise to non-generic fluctuations at their edge. They are in the same universa…