A flat perspective on moduli spaces of hyperbolic surfaces

Fuente: arXiv
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Main Author: Sauvaget, Adrien
Format: Preprint
Published: 2024
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author Sauvaget, Adrien
author_facet Sauvaget, Adrien
contents Volumes of moduli spaces of hyperbolic cone surfaces were previously defined and computed when the angles of the cone singularities are at most 2pi. We propose a general definition of these volumes without restriction on the angles. This construction is based on flat geometry as our proposed volume is a limit of Masur-Veech volumes of moduli spaces of multi-differentials. This idea generalizes the observation in quantum gravity that the Jackiw-Teitelboim partition function is a limit of minimal string partition functions from Liouville gravity. Finally, we use the properties of these volumes to recover Mirzakhani's recursion formula for Weil-Petersson polynomials. This provides a new proof of Witten-Kontsevich's theorem.
format Preprint
id arxiv_https___arxiv_org_abs_2405_10869
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A flat perspective on moduli spaces of hyperbolic surfaces
Sauvaget, Adrien
Algebraic Geometry
Mathematical Physics
Dynamical Systems
Volumes of moduli spaces of hyperbolic cone surfaces were previously defined and computed when the angles of the cone singularities are at most 2pi. We propose a general definition of these volumes without restriction on the angles. This construction is based on flat geometry as our proposed volume is a limit of Masur-Veech volumes of moduli spaces of multi-differentials. This idea generalizes the observation in quantum gravity that the Jackiw-Teitelboim partition function is a limit of minimal string partition functions from Liouville gravity. Finally, we use the properties of these volumes to recover Mirzakhani's recursion formula for Weil-Petersson polynomials. This provides a new proof of Witten-Kontsevich's theorem.
title A flat perspective on moduli spaces of hyperbolic surfaces
topic Algebraic Geometry
Mathematical Physics
Dynamical Systems
url https://arxiv.org/abs/2405.10869