Baptiste Louf
Contact
Institut de Mathématiques de Bordeaux
Bureau 313, bâtiment A33
351, cours de la Libération
33405 TALENCE
baptiste.louf(at)math.u-bordeaux.fr
I am a "Chargé de Recherche" CNRS at Institut de Mathématiques de Bordeaux.
Previously, I was a postdoc in Montréal (CRM, McGill and UQAM) and in the Probability and Combinatorics group of Uppsala University. I did my PhD at IRIF in the Combinatorics team where my advisor was Guillaume Chapuy. Here is my PhD manuscript, and the slides of the defense.
New: 2-year postdoc position in Bordeaux, starting Fall 2025. Deadline : 31/12/2024, more details here.
Research interests
Geometry of surfaces and enumeration (in a broad sense). I mainly study combinatorial maps (i.e. graphs embedded on surfaces), but I also work with other models of surfaces and combinatorial families. These days, I am particularly interested in large genus behaviour, bivariate asymptotics and the link with integrable hierachies.
Articles and preprints
- Modularity and graph expansion, with Fiona Skerman and Colin McDiarmid, in ITCS 2024. arXiv
- Distances and isoperimetric inequalities in random triangulations of high genus, with Thomas Budzinski and Guillaume Chapuy. arXiv
- Random partitions under the Plancherel-Hurwitz measure, high genus Hurwitz numbers and maps, with Guillaume Chapuy and Harriet Walsh. AofA 2022 (short version), full version in Annals of Probability. arXiv
- Unicellular maps vs hyperbolic surfaces in large genus: simple closed curves, with Svante Janson, in Annals of Probability. arXiv
- Random generation and scaling limits of fixed genus factorizations into transpositions, with Valentin Féray and Paul Thévenin, in Probability Theory and Related Fields. arXiv
- Short cycles in high genus unicellular maps, with Svante Janson, in Annales de l'Institut Henri Poincaré. arXiv
- Large expanders in high genus unicellular maps, in Combinatorial Theory. arXiv
- Finding large expanders in graphs: from topological minors to induced subgraphs, with Fiona Skerman, in Electronic Journal of Combinatorics. arXiv
- Planarity and non-separating cycles in uniform high genus quadrangulations, in Probability Theory and Related Fields. arXiv
- Local limits of bipartite maps with prescribed face degrees in high genus, with Thomas Budzinski, in Annals of Probability. arXiv
- Local limits of uniform triangulations in high genus, with Thomas Budzinski, in Inventiones Mathematicae. arXiv
- Simple formulas for constellations and bipartite maps with prescribed degrees, FPSAC 2019 (short version), full version in Canadian Journal of Mathematics. arXiv
- A new family of bijections for planar maps, FPSAC 2018 (short version), full version in Journal of Combinatorial Theory, Series A. arXiv
