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We study the cusped Hitchin component consisting of (conjugacy classes of) cusped Hitchin representations of a torsion-free geometrically finite Fuchsian group into PSL(d,R). We produce pressure metrics associated to the first fundamental…

Geometric Topology · Mathematics 2023-10-02 Harrison Bray , Richard Canary , Lien-Yung Kao , Giuseppe Martone

The Hitchin component of the character variety of representations of a surface group $\pi_1(S)$ into $\mathrm{PSL}_d(\mathbb{R})$ for some $d \geq 3$ can be equipped with a pressure metric whose restriction to the Fuchsian locus equals the…

Differential Geometry · Mathematics 2025-07-01 Pierre-Louis Blayac , Ursula Hamenstädt , Théo Marty , Andrea Egidio Monti

The main result is an explicit expression for the Pressure Metric on the Hitchin component of surface group representations into PSL(n,R) along the Fuchsian locus. The expression is in terms of a parametrization of the tangent space by…

Differential Geometry · Mathematics 2016-09-13 François Labourie , Richard Wentworth

In this short note we explain how to adapt the construction of two Riemannian metrics on the $\mathrm{SL}(3,\mathbb{R})$-Hitchin component to the deformation space of globally hyperbolic anti-de Sitter structures: the pressure metric and…

Differential Geometry · Mathematics 2021-12-28 Andrea Tamburelli

In this paper, we produce a mapping class group invariant pressure metric on the space QF(S) of quasiconformal deformations of a co-finite area Fuchsian group uniformizing a surface S. Our pressure metric arises from an analytic pressure…

Geometric Topology · Mathematics 2023-11-15 Harrison Bray , Richard Canary , Lien-Yung Kao

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

We study unions of fundamental domains of a Fuchsian group, especially those with hyperbolic plane metric realizing the metric of the corresponding hyperbolic surface. We call these unions the \textit{geodesic covers} of the Fuchsian group…

Geometric Topology · Mathematics 2021-04-12 Zhipeng Lu

For a closed surface S, the Hitchin component Hit_n(S) is a preferred component of the character variety consisting of group homomorphisms from the fundamental group pi_1(S) to the Lie group PSL_n(R). We construct a parametrization of the…

Geometric Topology · Mathematics 2018-08-02 Francis Bonahon , Guillaume Dreyer

The space of all probability measures having positive density function on a connected compact smooth manifold $M$, denoted by $\mathcal{P}(M)$, carries the Fisher information metric $G$. We define the geometric mean of probability measures…

Differential Geometry · Mathematics 2023-05-19 Mitsuhiro Itoh , Hiroyasu Satoh

We associate certain probability measures on $\R$ to geodesics in the space $\H_L$ of positively curved metrics on a line bundle $L$, and to geodesics in the finite dimensional symmetric space of hermitian norms on $H^0(X, kL)$. We prove…

Differential Geometry · Mathematics 2009-07-13 Bo Berndtsson

We give a geometric interpretation of Fock--Goncharov positivity and show that bending deformations of Fuchsian representations stabilize a uniform Finsler quasi-convex disk in the symmetric space $\mathrm{PSL}_d(\mathbb…

Differential Geometry · Mathematics 2025-07-03 Pierre-Louis Blayac , Ursula Hamenstädt , Théo Marty

The geodesic equations for the general case of diagonal metrics of static, spherically symmetric fields are calculated. The elimination of the proper time variable gives the motion equations for test particles with respect to coordinate…

General Physics · Physics 2015-03-09 Franz-Günter Winkler

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

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

In this paper, we study Fuchsian loci of ${\rm PSL}_n(\mathbb{R})$-Hitchin components. In particular, using the Bonahon-Dreyer parametrization of ${\rm PSL}_n(\mathbb{R})$-Hitchin components, we give an explicit parametrization of Fuchsian…

Geometric Topology · Mathematics 2018-03-26 Yusuke Inagaki

In the Labourie-Loftin parametrization of the Hitchin component of surface group representations into SL(3,R), we prove an asymptotic formula for holonomy along rays in terms of local invariants of the holomorphic differential defining that…

Differential Geometry · Mathematics 2026-05-21 John Loftin , Andrea Tamburelli , Michael Wolf

We find a compactification of the $\mathrm{SL}(3,\mathbb{R})$-Hitchin component by studying the degeneration of the Blaschke metrics on the associated equivariant affine spheres. In the process, we establish the closure in the space of…

Differential Geometry · Mathematics 2021-06-04 Charles Ouyang , Andrea Tamburelli

Goldman parametrizes the $\mathrm{PSL}_3(\mathbb{R})$-Hitchin component of a closed oriented hyperbolic surface of genus $g$ by $16g-16$ parameters. Among them, $10g-10$ coordinates are canonical. We prove that the…

Geometric Topology · Mathematics 2019-04-18 Suhyoung Choi , Hongtaek Jung , Hong Chan Kim

In this work half-flat metrics are obtained from Hitchin's equations. The SU$(\infty)$ Hitchin's equations are obtained and as a consequence of them, the Husain-Park equation is found. Considering that the gauge group is SU$(2)$, some…

High Energy Physics - Theory · Physics 2019-05-23 Erick Chacon , Hugo Garcia-Compean

In this paper, we extend the construction of pressure metrics to Teichm\"uller spaces of surfaces with punctures. This construction recovers Thurston's Riemannian metric on Teichm\"uller spaces. Moreover, we prove the real analyticity and…

Dynamical Systems · Mathematics 2019-04-30 Lien-Yung Kao
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