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We prove that the minimal possible diameter of a closed hyperbolic surface of genus $g$ is at most $\log(g)+25 \log \log(g) + O(1)$.

Geometric Topology · Mathematics 2026-05-05 Joffrey Mathien , Bram Petri

In this paper, we investigate the asymptotics of shortest filling closed multi-geodesics of closed hyperbolic surfaces as systole $\to 0$ or as genus $\to \infty$. We first show that for a closed hyperbolic surface $X_g$ of genus $g$, the…

Geometric Topology · Mathematics 2026-01-27 Yue Gao , Zhongzi Wang , Yunhui Wu

In this paper, we investigate the asymptotic behavior of the non-simple systole, which is the length of a shortest non-simple closed geodesic, on a random closed hyperbolic surface on the moduli space $\mathcal{M}_g$ of Riemann surfaces of…

Geometric Topology · Mathematics 2025-08-21 Yuxin He , Yang Shen , Yunhui Wu , Yuhao Xue

In this paper, we investigate basic geometric quantities of a random hyperbolic surface of genus $g$ with respect to the Weil-Petersson measure on the moduli space $\mathcal{M}_g$. We show that as $g$ goes to infinity, a generic surface…

Geometric Topology · Mathematics 2023-07-04 Xin Nie , Yunhui Wu , Yuhao Xue

This article introduces the notion of L-tangle-free compact hyperbolic surfaces, inspired by the identically named property for regular graphs. Random surfaces of genus g, picked with the Weil-Petersson probability measure, are (a log…

Geometric Topology · Mathematics 2021-10-01 Laura Monk , Joe Thomas

The study of random surfaces, especially in the asymptotics of large genus, has been of increasing interest in recent years. Many geometrical questions have analogous formulations in the theory of random graphs with a large number of…

Geometric Topology · Mathematics 2026-01-05 Joffrey Mathien

We show that the algebraic intersection form of hyperbolic surfaces of genus $g$ has a minimum in the moduli space and that the minimum grows in the order $(\log g)^{-2}$ in terms of the genus. We also describe the asymptotic behavior of…

Geometric Topology · Mathematics 2024-04-25 Manman Jiang , Huiping Pan

For any $\varepsilon>0$, we construct a closed hyperbolic surface of genus $g=g(\varepsilon)$ with a set of at most $\varepsilon g$ systoles that fill, meaning that each component of the complement of their union is contractible. This…

Geometric Topology · Mathematics 2019-10-08 Maxime Fortier Bourque

Motivated by recent work on Delaunay triangulations of hyperbolic surfaces, we consider the minimal number of vertices of such triangulations. First, we will show that every hyperbolic surface of genus $g$ has a simplicial Delaunay…

Computational Geometry · Computer Science 2020-11-20 Matthijs Ebbens , Hugo Parlier , Gert Vegter

We consider the asymptotic behavior of properly embedded minimal surfaces in the product of the hyperbolic plane with the line, taking into account the fact that there is more than one natural compactification of this space. This provides a…

Differential Geometry · Mathematics 2015-06-10 Benoit Kloeckner , Rafe Mazzeo

The systoles of a hyperbolic surface {\Sigma} are the shortest closed geodesics. We say that the systoles fill the surface if the set Syst({\Sigma}) of all systoles cuts {\Sigma} into polygons. We refine an idea of Schmutz [15] to construct…

Geometric Topology · Mathematics 2023-10-25 Ingrid Irmer , Olivier Mathieu

We determine the asymptotic growth rate of the diameter of the random hyperbolic surfaces constructed by Brooks and Makover. This model consists of a uniform gluing of $2n$ hyperbolic ideal triangles along their sides followed by a…

Geometric Topology · Mathematics 2021-12-01 Thomas Budzinski , Nicolas Curien , Bram Petri

We consider the hyperelliptic handlebody group on a closed surface of genus $g$. This is the subgroup of the mapping class group on a closed surface of genus $g$ consisting of isotopy classes of homeomorphisms on the surface that commute…

Geometric Topology · Mathematics 2017-02-22 Susumu Hirose , Eiko Kin

The interaction strength I(X) of a compact hyperbolic surface X is the best upper bound for the intersection number of two closed geodesics divided by the product of their lengths. Let $M_g$ be the moduli space of compact hyperbolic…

Geometric Topology · Mathematics 2025-10-02 Tina Torkaman

We prove there exists a compact embedded minimal surface in a complete finite volume hyperbolic $3$-manifold $\mathcal{N}$. We also obtain a least area, incompressible, properly embedded, finite topology, $2$-sided surface. We prove a…

Differential Geometry · Mathematics 2014-06-26 Pascal Collin , Laurent Hauswirth , Laurent Mazet , Harold Rosenberg

We prove that for each positive integer g, there exists a complete minimal surface of genus g that is properly embedded in three-dimensional euclidean space and that is asymptotic to the helicoid.

Differential Geometry · Mathematics 2013-04-24 David Hoffman , Martin Traizet , Brian White

Let $S$ be a compact hyperbolic Riemann surface of genus $g \geq 2$. We call a systole a shortest simple closed geodesic in $S$ and denote by $\mathop{sys}(S)$ its length. Let $\mathop{msys(g)}$ be the maximal value that…

Differential Geometry · Mathematics 2016-08-16 Hugo Akrout , Bjoern Muetzel

In this paper we study the asymptotic behavior of Weil-Petersson volumes of moduli spaces of hyperbolic surfaces of genus $g$ as $g \rightarrow \infty.$ We apply these asymptotic estimates to study the geometric properties of random…

General Topology · Mathematics 2010-12-13 Maryam Mirzakhani

We introduced an asymptotic quantity that counts area-minimizing surfaces in negatively curved closed 3-manifolds and show that quantity to only be minimized, among all metrics of sectional curvature less than or equal -1, by the hyperbolic…

Differential Geometry · Mathematics 2020-02-05 Danny Calegari , Fernando C. Marques , André Neves

We show that the asymptotic dimension of a hyperbolic relatively hyperbolic graph is finite provided that this holds true uniformly for the peripheral subgraphs and for the electrifiation. We use this to show that the asymptotic dimension…

Geometric Topology · Mathematics 2019-03-20 Ursula Hamenstaedt
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