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Random hyperbolic surfaces

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Authors : Budd, Timothy (Author of the conference)
CIRM (Publisher )

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Abstract : Going back at least to the works of Witten and Kontsevich, it is known that (symplectic or Weil-Petersson) volumes of moduli spaces of Riemann surfaces share many features with the enumeration of maps. It is therefore natural to expect that the theory of random hyperbolic metrics sampled according to the Weil-Petersson measure on, say, punctured spheres is closely related to the theory of random planar maps. I will highlight some similarities and show that tree bijections, which are ubiquitous in the study of random planar maps, have analogues for hyperbolic surfaces. As an application, jointly with Nicolas Curien, we show that these random hyperbolic surfaces with properly rescaled metric admit a scaling limit towards the Brownian sphere when the number of punctures increases.

Keywords : Weil-Petersson volumes; Brownian sphere; random trees

MSC Codes :
05C80 - Random graphs
30F60 - Teichmüller theory
82B41 - Random walks, random surfaces, lattice animals, etc.

    Information on the Video

    Film maker : Hennenfent, Guillaume
    Language : English
    Available date : 04/02/2022
    Conference Date : 18/01/2022
    Subseries : Research talks
    arXiv category : Probability ; Geometric Topology ; Mathematical Physics
    Mathematical Area(s) : Mathematical Physics ; Probability & Statistics
    Format : MP4 (.mp4) - HD
    Video Time : 00:54:52
    Targeted Audience : Researchers
    Download : https://videos.cirm-math.fr/2022-01-18_Budd.mp4

Information on the Event

Event Title : Random Geometry / Géométrie aléatoire
Event Organizers : Curien, Nicolas ; Goldschmidt, Christina ; Le Gall, Jean-François ; Miermont, Grégory ; Rhodes, Rémi
Dates : 17/01/2022 - 21/01/2022
Event Year : 2022
Event URL : https://conferences.cirm-math.fr/2528.html

Citation Data

DOI : 10.24350/CIRM.V.19876403
Cite this video as: Budd, Timothy (2022). Random hyperbolic surfaces. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.19876403
URI : http://dx.doi.org/10.24350/CIRM.V.19876403

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