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Combinatorial maps and hyperbolic surfaces in high genus

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Authors : Louf, Baptiste (Author of the conference)
CIRM (Publisher )

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Abstract : 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

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

    Information on the Video

    Film maker : Hennenfent, Guillaume
    Language : English
    Available date : 23/10/2023
    Conference Date : 05/10/2023
    Subseries : Research talks
    arXiv category : Probability ; Combinatorics ; Geometric Topology
    Mathematical Area(s) : Geometry ; Topology
    Format : MP4 (.mp4) - HD
    Video Time : 00:48:23
    Targeted Audience : Researchers ; Graduate Students ; Doctoral Students, Post-Doctoral Students
    Download : https://videos.cirm-math.fr/2023-10-05_louf.mp4

Information on the Event

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

Citation Data

DOI : 10.24350/CIRM.V.20099303
Cite this video as: 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

See Also

Bibliography

  • 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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