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In this article, we extend Thurston's asymmetric metric and the associated Finsler norm, originally defined for Teichm\"uller space, to the setting of Margulis spacetimes. We also establish several convexity properties of both the…

Geometric Topology · Mathematics 2025-12-10 Krishnendu Gongopadhyay , Neelanjan Mondal

We highlight several analogies between the Finsler (infinitesimal) properties of Teichm\"uller's metric and Thurston's asymmetric metric on Teichm\"uller space. Thurston defined his asymmetric metric in analogy with Teichm\"ullers' metric,…

Geometric Topology · Mathematics 2011-11-18 Athanase Papadopoulos , Weixu Su

Thurston introduced in his seminal work an asymmetric metric on Teichm\"uller space by the ratio of simple closed curve length. In this paper, we generalize the idea and define an asymmetric metric on the space of unit-area flat metrics…

Geometric Topology · Mathematics 2025-10-21 Jiajun Shi

In this paper, we answer some natural questions on symmetrisation and more general combinations of Finsler metrics, with a view towards applications to Funk and Hilbert geometries and to metrics on Teichm{\"u}ller spaces. For a general…

Differential Geometry · Mathematics 2025-06-05 Ismail Saglam , Ken'Ichi Ohshika , Athanase Papadopoulos

We observe Thurston's asymmetric metric on Teichm\"uller space may be expressed in terms of the H\"older regularity of boundary maps. We then associate $2$-dimensional stratified loci in $\mathbb{RP}^{n-1}$ to $\text{PSL}_n(\mathbb{R})$…

Geometric Topology · Mathematics 2024-02-27 Alexander Nolte

On a convex body in a Euclidean space, we introduce a new variational formulation for its Funk metric, a Finsler metric compatible with the tautological Finsler structure of the convex body. We generalize the metric on Teichmuller spaces…

Differential Geometry · Mathematics 2012-06-12 Sumio Yamada

In this paper, we introduce an asymmetric metric on the space of marked Euclidean triangles, and we prove several properties of this metric, including two equivalent definitions of this metric, one of them comparing ratios of functions of…

Geometric Topology · Mathematics 2025-04-25 Ismail Saglam , Ken'Ichi Ohshika , Athanase Papadopoulos

The Teichm\"uller space $\mathcal{T}(\Sigma)$ of a surface $\Sigma$ is equipped with Thurston's asymmetric metric. Stretch lines are oriented geodesics for this metric on $\mathcal{T}(\Sigma)$. We give the asymptotic behavior of the lengths…

Geometric Topology · Mathematics 2018-05-01 Guillaume Théret

Using the thermodynamics formalism, we introduce a notion of intersection for projective Anosov representations, show analyticity results for the intersection and the entropy, and rigidity results for the intersection. We use the…

Differential Geometry · Mathematics 2015-02-03 Martin Bridgeman , Richard Canary , Francois Labourie , Andres Sambarino

We discuss how one uses the thermodynamic formalism to produce metrics on higher Teichm\"uller spaces. Our higher Teichm\"uller spaces will be spaces of Anosov representations of a word-hyperbolic group into a semi-simple Lie group. We…

Differential Geometry · Mathematics 2017-08-15 Martin Bridgeman , Richard Canary , Andrés Sambarino

In this paper, we show that the analogue of Thurston's asymmetric metric on the Teichm{\"u}ller space of flat structures on the torus is weak Finsler and we give a geometric description of its unit sphere at each point in the tangent space…

Complex Variables · Mathematics 2021-09-07 Hideki Miyachi , Ken'Ichi Ohshika , Athanase Papadopoulos

We show that the Teichm\"uller space of a surface without boundary and with punctures, equipped with Thurston's metric is the limit (in an appropriate sense) of Teichm\"uller spaces of surfaces with boundary, equipped with their arc…

Geometric Topology · Mathematics 2015-09-23 Athanase Papadopoulos , Weixu Su

The aim of this paper is to relate Thurston's metric on Teichm\"uller space to several ideas initiated by T. Sorvali on isomorphisms between Fuchsian groups. In particular, this will give a new formula for Thurston's asymmetric metric for…

Geometric Topology · Mathematics 2012-10-10 Athanase Papadopoulos , Weixu Su

We extend several notions and results from the classical Patterson-Sullivan theory to the setting of Anosov subgroups of higher rank semisimple Lie groups, working primarily with invariant Finsler metrics on associated symmetric spaces. In…

Group Theory · Mathematics 2022-04-26 Subhadip Dey , Michael Kapovich

We introduce different notions of separation for families of Anosov representations. We show that, along a diverging sequence of such families, the critical exponent is asymptotic to a combinatorial invariant computable from the spectral…

Geometric Topology · Mathematics 2026-05-15 Joaquín Lejtreger , Joaquín Lema

This survey is an introduction to the geometry of co-Minkowksi space, the space of unoriented spacelike hyperplanes of the Minkowski space. Affine deformations of cocompact lattices of hyperbolic isometries act on it, in a way similar to…

Differential Geometry · Mathematics 2018-02-01 Thierry Barbot , François Fillastre

We prove that the Teichm\"uller space of surfaces with given boundary lengths equipped with the arc metric (resp. the Teichm\"uller metric) is almost isometric to the Teichm\"uller space of punctured surfaces equipped with the Thurston…

Geometric Topology · Mathematics 2017-03-09 Manman Jiang , Lixin Liu , Huiping Pan

We study the asymmetry of the Lipschitz metric d on Outer space. We introduce an (asymmetric) Finsler norm that induces d. There is an Out(F_n)-invariant potential \Psi on Outer space such that when the Lipschitz norm is corrected by the…

Group Theory · Mathematics 2011-03-25 Yael Algom-Kfir , Mladen Bestvina

Almost Finsler manifolds and partial Finsler manifolds are introduced, extending the standard definition of a Finsler manifold to allow for a nontrivial slit containing points fixed under homogeneous scaling and for metrics where the…

Differential Geometry · Mathematics 2026-03-24 James F. Davis , Benjamin R. Edwards , Alan Kostelecky

We establish a Leray- Trudinger Type inequality in the anisotropic setting induced by a strongly convex Finsler norm F. The result generalizes classical exponential integrability inequalities for Sobolev functions to the framework of…

Analysis of PDEs · Mathematics 2025-06-23 Giuseppina Di Blasio , Giovanni Pisante , Georgios Psaradakis
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