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Combinatorial maps and hyperbolic surfaces in high genus

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Auteurs : Louf, Baptiste (Auteur de la Conférence)
CIRM (Editeur )

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Résumé : In this talk, we consider two models of random geometry of surfaces in high genus: combinatorial maps and hyperbolic surfaces. The geometric properties of random hyperbolic surfaces under the Weil–Petersson measure as the genus tends to infinity have been studied for around 15 years now, building notably on enumerative results of Mirzakhani. On the other hand, random combinatorial maps were first studied in the planar/finite genus case, and then in the high genus regime starting 10 years ago with unicellular (i.e. one-faced) maps. In a joint work with Svante Janson, we noticed some numerical coincidence regarding the counting of short closed curves in unicellular maps/hyperbolic surfaces in high genus (comparing it to results of Mirzakhani and Petri). This leads us to conjecture some similarities between the two models in the limit, and raises several other open questions.

Keywords : hyperbolic surfaces

Codes MSC :
05C10 - Planar graphs; geometric and topological aspects of graph theory

    Informations sur la Vidéo

    Réalisateur : Hennenfent, Guillaume
    Langue : Anglais
    Date de publication : 23/10/2023
    Date de captation : 05/10/2023
    Sous collection : Research talks
    arXiv category : Probability ; Combinatorics ; Geometric Topology
    Domaine : Geometry ; Topology
    Format : MP4 (.mp4) - HD
    Durée : 00:48:23
    Audience : Researchers ; Graduate Students ; Doctoral Students, Post-Doctoral Students
    Download : https://videos.cirm-math.fr/2023-10-05_louf.mp4

Informations sur la Rencontre

Nom de la rencontre : Probability and Geometry in, on and of non-Euclidian spaces / Probabilités et géométrie dans, sur et des espaces non-euclidiens
Organisateurs de la rencontre : Curien, Nicolas ; Garcia-Failde, Elba ; Petri, Bram ; Singh, Arvind
Dates : 02/10/2023 - 06/10/2023
Année de la rencontre : 2023
URL Congrès : https://conferences.cirm-math.fr/2897.html

Données de citation

DOI : 10.24350/CIRM.V.20099303
Citer cette vidéo: Louf, Baptiste (2023). Combinatorial maps and hyperbolic surfaces in high genus. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.20099303
URI : http://dx.doi.org/10.24350/CIRM.V.20099303

Voir aussi

Bibliographie

  • JANSON, Svante et LOUF, Baptiste. Unicellular maps vs. hyperbolic surfaces in large genus: Simple closed curves. The Annals of Probability, 2023, vol. 51, no 3, p. 899-929. - http://dx.doi.org/10.1214/22-AOP1601



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