activity
20182025
most citedLocal limits of uniform triangulations in high genus

32 citations · 51 across the 14 of their papers we have counts for

collaborators

15 papers

math.CO2025

Bivariate asymptotics via random walks: application to large genus maps

Andrew Elvey Price, Wenjie Fang, Baptiste Louf +1

We obtain bivariate asymptotics for the number of (unicellular) combinatorial maps (a model of discrete surfaces) as both the size and the genus grow. This work is related to two r…

math.CO2023

Modularity and Graph Expansion

Baptiste Louf, Colin McDiarmid, Fiona Skerman

We relate two important notions in graph theory: expanders which are highly connected graphs, and modularity a parameter of a graph that is primarily used in community detection. M…

math.PR2023★ 1 cited

Distances and isoperimetric inequalities in random triangulations of high genus

Thomas Budzinski, Guillaume Chapuy, Baptiste Louf

We prove that uniform random triangulations whose genus is proportional to their size have diameter of order with high probability. We also show that in such triangula…

math.CO2022★ 3 cited

Random partitions under the Plancherel-Hurwitz measure, high genus Hurwitz numbers and maps

Guillaume Chapuy, Baptiste Louf, Harriet Walsh

We study the asymptotic behaviour of random integer partitions under a new probability law that we introduce, the Plancherel-Hurwitz measure. This distribution, which has a natural…

math.PR2022★ 3 cited

The Discrete Gaussian model, I. Renormalisation group flow at high temperature

Roland Bauerschmidt, Jiwoon Park, Pierre-François Rodriguez

The Discrete Gaussian model is the lattice Gaussian free field conditioned to be integer-valued. In two dimensions, at sufficiently high temperature, we show that its macroscopic s…

math.PR2021

Unicellular maps vs hyperbolic surfaces in large genus: simple closed curves

Svante Janson, Baptiste Louf

We study uniformly random maps with a single face, genus , and size , as with , in continuation of several previous works on the geometric p…

math.PR2021

Random generation and scaling limits of fixed genus factorizations into transpositions

Valentin Féray, Baptiste Louf, Paul Thévenin

We study the asymptotic behaviour of random factorizations of the -cycle into transpositions of fixed genus . They have a geometric interpretation as branched covers of the…

math.PR2021

Short cycles in high genus unicellular maps

Svante Janson, Baptiste Louf

We study large uniform random maps with one face whose genus grows linearly with the number of edges, which are a model of discrete hyperbolic geometry. In previous works, several…

math.CO2021

Large expanders in high genus unicellular maps

Baptiste Louf

We study large uniform random maps with one face whose genus grows linearly with the number of edges. They can be seen as a model of discrete hyperbolic geometry. In the past, seve…

math.CO2020★ 3 cited

Finding large expanders in graphs: from topological minors to induced subgraphs

Baptiste Louf, Fiona Skerman

In this paper, we consider a structural and geometric property of graphs, namely the presence of large expanders. The problem of finding such structures was first considered by Kri…

math.PR2020

Local limits of bipartite maps with prescribed face degrees in high genus

Thomas Budzinski, Baptiste Louf

We study the local limits of uniform high genus bipartite maps with prescribed face degrees. We prove the convergence towards a family of infinite maps of the plane, the q-IBPMs, w…

math.PR2020★ 5 cited

Planarity and non-separating cycles in uniform high genus quadrangulations

Baptiste Louf

We study large uniform random quadrangulations whose genus grow linearly with the number of faces, whose local convergence was recently established by Budzinski and the author arXi…

math.CO2019★ 4 cited

Simple formulas for constellations and bipartite maps with prescribed degrees

Baptiste Louf

We obtain simple quadratic recurrence formulas counting bipartite maps on surfaces with prescribed degrees (in particular, -angulations), and constellations. These formulas are…

math.PR2019★ 32 cited

Local limits of uniform triangulations in high genus

Thomas Budzinski, Baptiste Louf

We prove a conjecture of Benjamini and Curien stating that the local limits of uniform random triangulations whose genus is proportional to the number of faces are the Planar Stoch…

math.CO2018

A new family of bijections for planar maps

Baptiste Louf

We present bijections for the planar cases of two counting formulas on maps that arise from the KP hierarchy (Goulden-Jackson and Carrell-Chapuy formulas), relying on a "cut-and-sl…