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We introduce the concept of a heterodimensional cycle of hyperbolic ergodic measures and a special type of them that we call rich. Within a partially hyperbolic context, we prove that if two measures are related by a rich heterodimensional…

Dynamical Systems · Mathematics 2024-05-22 Christian Bonatti , Lorenzo J. Diaz , Katrin Gelfert

Given a closed geodesic on a compact arithmetic hyperbolic surface, we show the existence of a sequence of Laplacian eigenfunctions whose integrals along the geodesic exhibit nontrivial growth. Via Waldspurger's formula we deduce a lower…

Number Theory · Mathematics 2020-12-23 Bart Michels

Hydrodynamic surfaces are solutions of hydrodynamic type systems viewed as non-parametrized submanifolds of the hodograph space. We propose an invariant differential-geometric characterization of hydrodynamic surfaces by expressing the…

Exactly Solvable and Integrable Systems · Physics 2009-11-07 E. V. Ferapontov

In this paper, we investigate the prescribed total geodesic curvature problem for generalized circle packing metrics in hyperbolic background geometry on surfaces with infinite cellular decompositions. To address this problem, we introduce…

Geometric Topology · Mathematics 2025-05-27 Xinrong Zhao , Puchun Zhou

Let $M$ be a closed hyperbolic $3$-manifold. A homotopy class $[S]$ of surfaces in $M$ is filling if any representative cuts $M$ into components contractible in $M$. We prove that there exist $\epsilon_0, g_0>0$ such that every homotopy…

Geometric Topology · Mathematics 2026-03-20 Xiaolong Hans Han

We give a finitary criterion for the convergence of measures on non-elementary geometrically finite hyperbolic orbifolds to the unique measure of maximal entropy. We give an entropy criterion controlling escape of mass to the cusps of the…

Dynamical Systems · Mathematics 2021-04-21 Ron Mor

We present and prove a topological characterization of geodesic laminations on hyperbolic surfaces of finite type.

Geometric Topology · Mathematics 2018-05-30 Luis-Miguel Lopez

In the present paper, we show that the minimal length of closed geodesics on finite-type hyperbolic surfaces with self-intersection number $k$ has order $2\log k$ as $k$ gets large.

Geometric Topology · Mathematics 2022-07-19 Wujie Shen , Jiajun Wang

We prove that a surface carries a hexagonal 3-web of geodesics if and only if the geodesic flow on the surface admits a cubic first integral and show that the system of partial differential equations, governing metrics on such surfaces, is…

Differential Geometry · Mathematics 2019-03-05 Sergey I. Agafonov

This paper constructs hyperbolic polyhedral metrics via circle packings. We introduce the curvature of circles as a parameter to include all three types of constant curvature curves in the hyperbolic geometry. This provides a unified…

Geometric Topology · Mathematics 2025-07-15 Te Ba , Guangming Hu , Yu Sun

We introduce a prime end-type theory on complete Kobayashi hyperbolic manifolds using horosphere sequences. This allows to introduce a new notion of boundary-new even in the unit disc in the complex space-the horosphere boundary, and a…

Complex Variables · Mathematics 2018-04-06 Filippo Bracci , Hervé Gaussier

We prove that the geodesic flow of a Kupka-Smale riemannian metric on a closed surface has homoclinic orbits for all of its hyperbolic closed geodesics.

Dynamical Systems · Mathematics 2024-07-15 Gonzalo Contreras , Fernando Oliveira

We give sharp upper bounds on the injectivity radii of complete hyperbolic surfaces of finite area with some geodesic boundary components. The given bounds are over all such surfaces with any fixed topology; in particular, boundary lengths…

Geometric Topology · Mathematics 2020-05-14 Jason DeBlois , Kim Romanelli

For hyperbolic surfaces with geodesic boundary, we study the orthosystole, i.e. the length of a shortest essential arc from the boundary to the boundary. We recover and extend work by Bavard completely characterizing the surfaces maximizing…

Geometric Topology · Mathematics 2025-07-31 Ara Basmajian , Federica Fanoni

Our main point of focus is the set of closed geodesics on hyperbolic surfaces. For any fixed integer $k$, we are interested in the set of all closed geodesics with at least $k$ (but possibly more) self-intersections. Among these, we…

Geometric Topology · Mathematics 2016-09-02 Viveka Erlandsson , Hugo Parlier

We expose a connection between distance minimizing laminations and horospherical orbit closures in $\mathbb{Z}$-covers of compact hyperbolic manifolds. For surfaces, we provide novel constructions of $\mathbb{Z}$-covers with prescribed…

Dynamical Systems · Mathematics 2023-06-27 James Farre , Or Landesberg , Yair Minsky

We consider Hamiltonian diffeomorphisms of the Euclidean space, generated by compactly supported time-dependent perturbations of hyperbolic quadratic forms. We prove that, under some natural assumptions, such a diffeomorphism must have…

Symplectic Geometry · Mathematics 2016-01-20 Basak Z. Gurel

We produce infinitely many examples of Anosov flows in closed 3-manifolds where the set of periodic orbits is partitioned into two infinite subsets. In one subset every closed orbit is freely homotopic to infinitely other closed orbits of…

Geometric Topology · Mathematics 2019-02-20 Sergio R. Fenley

We study resonances of surfaces of revolution obtained by removing a disk from a cone and attaching a hyperbolic cusp in its place. These surfaces include ones with nontrapping geodesic flow (every maximally extended non-reflected geodesic…

Analysis of PDEs · Mathematics 2017-05-12 Kiril R. Datchev , Daniel D. Kang , Andre P. Kessler

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