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Masur and Minsky showed that the curve graph is quasi-isometric to the Teichm\"uller space electrified along its thin part, and hence the Teichm\"uller space is weakly relatively hyperbolic with respect to the thin part. In this paper, we…

Geometric Topology · Mathematics 2026-03-05 Kento Sakai

Here we study what we call bounded rough Riemannian metrics $(M,g)$, which are positive definite, symmetric tensors on each tangent space, $T_pM$, which are bounded and measurable as functions in coordinates. This is enough structure to…

Differential Geometry · Mathematics 2026-03-09 Brian Allen , Bernardo Falcao , Harry Pacheco , Bryan Sanchez

Through the Schwarz lemma, we provide a new point of view on three well-known results of the geometry of hyperbolic surfaces. The first result deal with the length of closed geodesics on hyperbolic surfaces with boundary (Thurston, Parlier,…

Differential Geometry · Mathematics 2014-04-18 Matthieu Gendulphe

We introduce a method for constructing Weil-Petersson (WP) geodesics with certain behavior in the Teichm\"{u}ller space. This allows us to study the itinerary of geodesics among the strata of the WP completion and its relation to subsurface…

Geometric Topology · Mathematics 2020-01-31 Yair Minsky , Babak Modami

We study the Asymptotic Cone of Teichm\"uller space equipped with the Weil-Petersson metric. In particular, we provide a characterization of the canonical finest pieces in the tree-graded structure of the asymptotic cone of Teichm\"uller…

Geometric Topology · Mathematics 2015-11-25 Harold Mark Sultan

We use a special tiling for the hyperbolic $d$-space $\mathbb{H}^d$ for $d=2,3,4$ to construct an (almost) explicit isomorphism between the Lipschitz-free space $\mathcal{F}(\mathbb{H}^d)$ and $\mathcal{F}(P)\oplus\mathcal{F}(\mathcal{N})$…

Functional Analysis · Mathematics 2026-01-14 Christian Bargetz , Franz Luggin , Tommaso Russo

Let $f$ be a postcritically finite branched self-cover of a 2-dimensional topological sphere. Such a map induces an analytic self-map $\sigma_f$ of a finite-dimensional Teichm\"uller space. We prove that this map extends continuously to the…

Dynamical Systems · Mathematics 2012-04-30 Nikita Selinger

According to an analogy to quasi-Fuchsian groups, we investigate topological and combinatorial structures of Lyubich and Minsky's affine and hyperbolic 3-laminations associated with the hyperbolic and parabolic quadratic maps. We begin by…

Dynamical Systems · Mathematics 2014-01-17 Tomoki Kawahira

The Teichm\"{u}ller curve is the fiber space over Teichm\"{u}ller space of closed Riemann surfaces, where the fiber over a point in Teichm\"{u}ller space is the underlying surface. We derive formulas for sectional curvatures on the…

Differential Geometry · Mathematics 2013-05-13 Ren Guo , Subhojoy Gupta , Zheng Huang

Since their introduction by Thurston, measured geodesic laminations on hyperbolic surfaces occur in many contexts. In this survey, we give a generalization of geodesic laminations on surfaces endowed with a half-translation structure,…

Metric Geometry · Mathematics 2015-01-19 Thomas Morzadec

Probabilistic Latent Variable Models (LVMs) excel at modeling complex, high-dimensional data through lower-dimensional representations. Recent advances show that equipping these latent representations with a Riemannian metric unlocks…

Machine Learning · Computer Science 2025-05-20 Luis Augenstein , Noémie Jaquier , Tamim Asfour , Leonel Rozo

We suggest a way to associate to a rational map of the Riemann sphere a three dimensional object called a hyperbolic orbifold 3-lamination. The relation of this object to the map is analogous to the relation of a hyperbolic 3-manifold to a…

Dynamical Systems · Mathematics 2016-09-06 Mikhail Lyubich , Yair Minsky

We extend to the context of hyperbolic 3-manifolds with geodesic boundary Thurston's approach to hyperbolization by means of geometric triangulations. In particular, we introduce moduli for (partially) truncated hyperbolic tetrahedra, and…

Geometric Topology · Mathematics 2007-05-23 R. Frigerio , C. Petronio

Cutting a hyperbolic surface X along a simple closed multi-geodesic results in a hyperbolic structure on the complementary subsurface. We study the distribution of the shapes of these subsurfaces in moduli space as boundary lengths go to…

Geometric Topology · Mathematics 2022-08-10 Francisco Arana-Herrera , Aaron Calderon

We recall the fat-graph description of Riemann surfaces $\Sigma_{g,s,n}$ and the corresponding Teichm\"uller spaces $\mathfrak T_{g,s,n}$ with $s>0$ holes and $n>0$ bordered cusps in the hyperbolic geometry setting. If $n>0$, we have a…

Mathematical Physics · Physics 2020-09-01 Leonid O. Chekhov

Minimal surfaces in the sub-Riemannian Heisenberg group can be constructed by means of a Riemannian approximation scheme, as limit of Riemannian minimal surfaces. We study the regularity of Lipschitz, non-characteristic minimal surfaces…

Analysis of PDEs · Mathematics 2008-04-23 Luca Capogna , Giovanna Citti , Maria Manfredini

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

In this paper we study certain groups of bilipschitz maps of the boundary minus a point of a negatively curved space that is an abelian-by-cyclic solvable Lie group, where the extension is given by a matrix whose eigenvalues all lie outside…

Metric Geometry · Mathematics 2009-12-21 Tullia Dymarz , Irine Peng

We provide a combinatorial condition characterizing curves that are short along a Teichmueller geodesic. This condition is closely related to the condition provided by Minsky for curves in a hyperbolic 3-manifold to be short. We show that…

Geometric Topology · Mathematics 2014-11-11 Kasra Rafi

We construct a counterexample for an analogue of Masur's criterion in the setting of Teichm\"uller space equipped with the Thurston metric. For that, we find a minimal, filling, non-uniquely ergodic lamination $\lambda$ on the seven-times…

Geometric Topology · Mathematics 2022-08-31 Ivan Telpukhovskiy