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Given a hyperbolic surface $\Sigma$ of genus $g$ with $r$ cusps, Mirzakhani proved that the number of closed geodesics of length at most $L$ and of a given type is asymptotic to $cL^{6g-6+2r}$ for some $c>0$. Since a closed geodesic…

Geometric Topology · Mathematics 2025-10-27 Dounnu Sasaki

The topological type of a non-compact Riemann surface is determined by its ends space and the ends having infinite genus. In this paper for a non-compact Riemann Surface $S_{m,s}$ with $s$ ends and exactly $m$ of them with infinite genus,…

Differential Geometry · Mathematics 2019-05-28 John A. Arredondo , Camilo Ramírez Maluendas

For an orientable surface $S$ of finite topological type with genus $g \geq 3$, we construct a finite set of curves whose union of iterated rigid expansions is the curve graph of $S$. The set constructed, and the method of rigid expansion,…

Geometric Topology · Mathematics 2016-11-28 Jesús Hernández Hernández

We prove that a Kleinian surface groups is determined, up to conjugacy in the isometry group of $\mathbb H^3$, by its simple marked length spectrum. As a first application, we show that a discrete faithful representation of the fundamental…

Geometric Topology · Mathematics 2017-07-10 Martin Bridgeman , Richard D. Canary

We find an upper bound for the asymptotic dimension of a hyperbolic metric space with a set of geodesics satisfying a certain boundedness condition studied by Bowditch. The primary example is a collection of tight geodesics on the curve…

Geometric Topology · Mathematics 2014-02-26 Gregory Bell , Koji Fujiwara

We produce an upper bound for the Hausdorff dimension of the graph of a Weierstrass-type function. Whilst strictly weaker than existing results, it has the advantage of being directly computable from the theory of hyperbolic iterated…

Dynamical Systems · Mathematics 2023-01-13 Ted Alexander , Tommy Murphy

We consider the ortho spectrum of hyperbolic surfaces with totally geodesic boundary. We show that in general the ortho spectrum does not determine the systolic length but that there are only finitely many possibilities. As a corollary we…

Geometric Topology · Mathematics 2022-01-19 Hidetoshi Masai , Greg McShane

In this article, we revisit classical length identities enjoyed by simple closed curves on hyperbolic surfaces. We state and prove the rigidity of such identities over Teichm\"uller spaces. Due to this rigidity, certain collections of…

Geometric Topology · Mathematics 2025-06-18 Hyungryul Baik , Inhyeok Choi , Dongryul M. Kim

We study the growth rate of a sequence which measures the uniform norm of the differential under the iterates of maps. On symplectically hyperbolic manifolds, we show that this sequence has at least linear growth for every non-identical…

Symplectic Geometry · Mathematics 2015-03-11 Youngjin Bae

We give a detailed description of the arithmetic Fuchsian group of the Bolza surface and the associated quaternion order. This description enables us to show that the corresponding principal congruence covers satisfy the bound sys(X) > 4/3…

Differential Geometry · Mathematics 2015-07-17 Karin Katz , Mikhail Katz , Michael Schein , Uzi Vishne

In this paper we prove that for a fixed neat principal congruence subgroup of a Bianchi group the order of the torsion part of its second cohomology group with coefficients in an integral lattice associated to the m-th symmetric power of…

Number Theory · Mathematics 2015-05-07 Jonathan Pfaff , Jean Raimbault

Starting from the results in math.DG:1212.3161 we prove that for a given Bianchi group, certain natural coefficent modules and a lot of sequences of congruence subgroups of the size of the torsion subgroup of the first homology grows…

Geometric Topology · Mathematics 2018-02-14 Jean Raimbault

The family of Euclidean triangles having some fixed perimeter and area can be identified with a subset of points on a nonsingular cubic plane curve, i.e., an elliptic curve; furthermore, if the perimeter and the square of the area are…

Number Theory · Mathematics 2015-05-13 Nicolas Brody , Jordan Schettler

We extend the modular orbits method of constructing a two-dimensional orbifold conformal field theory to higher genus Riemann surfaces. We find that partition functions on surfaces of arbitrary genus can be constructed by a straightforward…

High Energy Physics - Theory · Physics 2020-03-27 Daniel Robbins , Thomas Vandermeulen

Every oriented closed geodesic on the modular surface has a canonically associated knot in its unit tangent bundle coming from the periodic orbit of the geodesic flow. We study the volume of the associated knot complement with respect to…

Geometric Topology · Mathematics 2023-08-07 José Andrés Rodríguez Migueles

We prove existence of thick geodesic triangulations of hyperbolic 3-manifolds and use this to prove existence of universal bounds on the principal curvatures of surfaces embedded in hyperbolic 3-manifolds.

Geometric Topology · Mathematics 2010-11-23 William Breslin

Bounded-type 3-manifolds arise as combinatorially bounded gluings of irreducible 3-manifolds chosen from a finite list. We prove effective hyperbolization and effective rigidity for a broad class of 3-manifolds of bounded type and large…

Geometric Topology · Mathematics 2017-05-17 Jeffrey Brock , Yair Minsky , Hossein Namazi , Juan Souto

We give new upper bounds on the stable commutator lengths of Dehn twists in mapping class groups and new lower bounds on the stable commutator lengths of Dehn twists in hyperelliptic mapping class groups. In particular, we show that the…

Geometric Topology · Mathematics 2011-06-06 Naoyuki Monden

We show that, assuming Vojta's height conjecture, the height of a rational point on an algebraically hyperbolic variety can be bounded "uniformly" in families. This generalizes a result of Su-Ion Ih for curves of genus at least two to…

Algebraic Geometry · Mathematics 2017-12-01 Kenneth Ascher , Ariyan Javanpeykar

Inspired by the classical Riemannian systolic inequality of Gromov we present a combinatorial analogue providing a lower bound on the number of vertices of a simplicial complex in terms of its edge-path systole. Similarly to the Riemannian…

Metric Geometry · Mathematics 2022-07-15 Sergey Avvakumov , Alexey Balitskiy , Alfredo Hubard , Roman Karasev