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We prove that simply connected open Riemannian manifolds of bounded geometry, linear growth and sublinear filling growth (e.g. finite filling area) are simply connected at infinity.

Differential Geometry · Mathematics 2007-05-23 Louis Funar , Renata Grimaldi

We study the Teichm\"uller metric on the Teichm\"uller space of a surface of finite type, in regions where the injectivity radius of the surface is small. The main result is that in such regions the Teichm\"uller metric is approximated up…

Geometric Topology · Mathematics 2016-09-06 Yair Minsky

We employ the curve shortening flow to establish three new results on the dynamics of geodesic flows of closed Riemannian surfaces. The first one is the stability, under $C^0$-small perturbations of the Riemannian metric, of certain flat…

Dynamical Systems · Mathematics 2025-05-29 Marcelo R. R. Alves , Marco Mazzucchelli

We give some basic properties of strongly topologically transitive, supermixing, and hypermixing maps on general topological spaces. Then we present some other results for which our mappings need to be continuous.

Dynamical Systems · Mathematics 2024-01-18 Mahin Ansari , Mohammad Ansari

We study Thurston's Lipschitz and curve metrics, as well as the arc metric on the Teichmueller space of one-hold tori equipped with complete hyperbolic metrics with boundary holonomy of fixed length. We construct natural Lipschitz maps…

Geometric Topology · Mathematics 2021-04-13 Yi Huang , Athanase Papadopoulos

Let $S$ be a closed, orientable surface of genus at least 2. The cotangent bundle of the "hyperbolic'' Teichm\"uller space of $S$ can be identified with the space $\CP$ of complex projective structures on $S$ through measured laminations,…

Differential Geometry · Mathematics 2010-11-02 Kirill Krasnov , Jean-Marc Schlenker

We analyse the convex structure of the Finsler infinitesimal balls of the Thurston metric on Teichm{\"u}ller space. We obtain a characterisation of faces, exposed faces and extreme points of the unit spheres. In particular, we prove that…

Geometric Topology · Mathematics 2025-03-27 Assaf Bar-Natan , Ken'Ichi Ohshika , Athanase Papadopoulos

It is conjectured that every cusped hyperbolic 3-manifold admits a geometric triangulation, i.e. it is decomposed into positive volume ideal hyperbolic tetrahedra. Here, we show that sufficiently highly twisted knots admit a geometric…

Geometric Topology · Mathematics 2023-06-14 Sophie L. Ham , Jessica S. Purcell

We study the geometry of the Thurston metric on the Teichm\"uller space $\mathcal{T}(S)$ of hyperbolic structures on a surface $S$. Some of our results on the coarse geometry of this metric apply to arbitrary surfaces $S$ of finite type;…

Geometric Topology · Mathematics 2020-05-27 David Dumas , Anna Lenzhen , Kasra Rafi , Jing Tao

We consider random walks on the mapping class group that have finite first moment with respect to the word metric, whose support generates a non-elementary subgroup and contains a pseudo-Anosov map whose invariant Teichmuller geodesic is in…

Geometric Topology · Mathematics 2020-08-19 Vaibhav Gadre , Joseph Maher

This note is about a type of quantitative density of closed geodesics on closed hyperbolic surfaces. The main results are upper bounds on the length of the shortest closed geodesic that $\varepsilon$-fills the surface.

Geometric Topology · Mathematics 2017-05-31 Ara Basmajian , Hugo Parlier , Juan Souto

Let $X$ be an infinite Riemann surface equipped with its conformal hyperbolic metric such that the action of the covering group $\pi_1(X)$ on $\tilde{X}$ is of the first kind-i.e., the surface $X$ is equal to its convex core. We first prove…

Geometric Topology · Mathematics 2019-12-12 Dragomir Šarić

We give a necessary condition on a geodesic in a Riemannian manifold that can run in some convex hypersurface. As a corollary we obtain peculiar properties that hold true for every convex set in any generic Riemannian manifold (M,g). For…

Differential Geometry · Mathematics 2022-01-13 Alexander Lytchak , Anton Petrunin

Let X be a manifold equipped with a complete Riemannian metric of constant negative curvature and finite volume. We demonstrate the finiteness of the collection of totally geodesic immersed hypersurfaces in X that lie in the zero-level set…

Differential Geometry · Mathematics 2018-11-20 Chris Judge , Sugata Mondal

We show that cusped finite-volume hyperbolic 3-manifolds contain infinitely many simple closed geodesics.

Geometric Topology · Mathematics 2021-10-28 Feihuang Xia

On a surface with a Finsler metric, we investigate the asymptotic growth of the number of closed geodesics of length less than $L$ which minimize length among all geodesic multicurves in the same homology class. An important class of…

Differential Geometry · Mathematics 2014-06-23 Daniel Massart , Hugo Parlier

We introduce the notion of domains with uniform squeezing property, study various analytic and geometric properties of such domains and show that they cover many interesting examples, including Teichmuller spaces and Hermitian symmetric…

Complex Variables · Mathematics 2009-06-26 Sai-Kee Yeung

Given a compact orientable surface of negative Euler characteristic, there exists a natural pairing between the Teichmueuller space of the surface and the set of homotopy classes of simple loops and arcs. The length pairing sends a…

Geometric Topology · Mathematics 2007-05-23 Feng Luo , Richard Stong

We prove that the Teichm\"uller space of the Hirsch foliation (a minimal foliation of a closed 3-manifold by non-compact hyperbolic surfaces) is homeomorphic to the space of closed curves in the plane. This allows us to show that that the…

Geometric Topology · Mathematics 2015-07-07 Sébastien Alvarez , Pablo Lessa

We describe the "hyperbolic" properties of a riemann surface lamination M canonically associated to every compact three manifolds of curvature less than 1. More precisely, if the geodesic flow is the phase space attached to an ordinary…

Differential Geometry · Mathematics 2009-10-31 Francois Labourie