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51102152203 · Jun 202019922001200920172026
48 results for Thurston metric

Study on Vaisman metrics on Kodaira-Thurston surface using pluriclosed flow.

problem Characterizing and preserving Vaisman metrics on Kodaira-Thurston surface.
method Characterization of T2T^2-invariant Vaisman metrics, analysis of pluriclosed flow behavior.
result Pluriclosed flow preserves Vaisman condition on Kodaira-Thurston surface, including non-constant scalar curvature.

Study of Teichmüller space geometry using infinitesimal and global methods.

problem Understanding the geometry of Teichmüller space and its tangent/cotangent spheres.
method Systematic study of Thurston metric's infinitesimal and global properties.
result Rigidity statements for the Thurston metric analogous to Royden theorem.

We show that the horofunction boundary of Teichmüller space with Thurston's Lipschitz metric is the same as the Thurston boundary. We use this to determine the isometry group of the Lipschitz metric, apart from in some exceptional cases. We also show that the Teichmüller spaces of different surfaces, when endowed with …

2010-06-10abs ↗pdf ↗

The paper describes geometric properties of Teichmüller space metrics.

problem Analyzing the geometry of Teichmüller space with weak Finsler metrics.
method Geometric description of unit spheres in weak Finsler metrics.
result Introduced a family of weak Finsler metrics interpolating between Thurston's metric and Teichmüller metric.

Using the identification of the symmetric space SL(n,R)/SO(n)\mathrm{SL}(n,\mathbb{R})/\mathrm{SO}(n) with the Teichmüller space of flat nn-tori of unit volume, we explore several metrics and compactifications of these spaces, drawing inspiration both from Teichmüller theory and symmetric spaces. We define and study analogs of t…

2019-03-26abs ↗pdf ↗

We study the geometry of the Thurston metric on the Teichmüller space T(S)\mathcal{T}(S) of hyperbolic structures on a surface SS. Some of our results on the coarse geometry of this metric apply to arbitrary surfaces SS of finite type; however, we focus particular attention on the case where the surface is a once-punct…

2016-10-24abs ↗pdf ↗

A Thurston map is a branched covering map from §2§^2 to §2§^2 with a finite postcritical set. We associate a natural Gromov hyperbolic graph $\G=\G(f,\mathcal C)$ with an expanding Thurston map ff and a Jordan curve C\mathcal C on §2§^2 containing $\post(f)$. The boundary at infinity of $\G$ with associated visual me…

2011-09-14abs ↗pdf ↗

This paper uses combinatorial Ricci flow to tackle Thurston's triangulation conjecture.

problem Thurston's triangulation conjecture for hyperbolic 3-manifolds.
method Combinatorial Ricci flow approach to prove convergence and geometric decompositions.
result Combinatorial Ricci flow converges if and only if the triangulation is geometric.

We extend Thurston's metric to projective filling currents, embedding Teichmüller space into the larger space.

problem Embedding Teichmüller space into the space of projectivized filling currents.
method Extending the symmetrized Thurston metric to PCfill(S)\mathbb P \mathcal C_{fill}(S) and studying its geometry.
result There is no quasi-isometric projection back from PCfill(S)\mathbb P \mathcal C_{fill}(S) to T(S)\mathcal T(S).

We show that the length function of a measured geodesic lamination is convex in Thurston's shear coordinates over Teichmüller space and strictly convex for generic laminations. We give some consequences of this result in the context of Thurston's asymmetric metric on Teichmüller space.

2014-08-25abs ↗pdf ↗

Let (X,d) be a tree (T) of hyperbolic metric spaces satisfying the quasi-isometrically embedded condition. Let vv be a vertex of TT. Let (Xv,dv)({X_v},d_v) denote the hyperbolic metric space corresponding to vv. Then i:XvXi : X_v \rightarrow X extends continuously to a map i^:Xv^X^\hat{i} : \widehat{X_v} \rightarrow \widehat{X}. …

1996-09-23abs ↗pdf ↗

The Teichmüller space T(Σ)\mathcal{T}(Σ) of a surface ΣΣ is equipped with Thurston's asymmetric metric. Stretch lines are oriented geodesics for this metric on T(Σ)\mathcal{T}(Σ). We give the asymptotic behavior of the lengths of the measured geodesic laminations as one follows a stretch line in the positive direction.

2018-04-30abs ↗pdf ↗

This paper adapts Thurston's earthquake metric to Riemann surfaces with marked points.

problem Defining a norm and metric on Teichmüller spaces for surfaces of arbitrary genus.
method Adapting Thurston's earthquake norm to Riemann surfaces with marked points and using complex Legendre transforms.
result Establishes a complete analogue of Thurston's earthquake norm in the conformal setting.

Geodesic envelopes stay uniformly bounded in specific Teichmüller spaces.

problem Understanding the behavior of geodesics in Teichmüller spaces.
method Identifying extremal geodesics, computing Fenchel-Nielsen twisting, and estimating earthquake path lengths.
result Width of geodesic envelopes is uniformly bounded in specific Teichmüller spaces.

We study the geometry of the Thurston metric on Teichmuller space by examining its geodesics and comparing them to Teichmuller geodesics. We show that, similar to a Teichmuller geodesic, the shadow of a Thurston geodesic to the curve graph is a reparametrized quasi-geodesic. However, we show that the set of short curve…

2014-05-06abs ↗pdf ↗

New combinatorial structures for Teichmüller spaces with Thurston's metric are explored.

problem Understanding the combinatorial structures of Teichmüller spaces with Thurston's metric.
method Analyzing the unit tangent and cotangent spheres of Teichmüller space, proving formulas for dimensions and codimensions of faces.
result The combinatorial structure of unit spheres in Teichmüller spaces is independent of the underlying point and is isomorphic to the extended mapping class group.

New metrics derived from Hölder distortion on Hitchin components.

problem Deriving metrics on Hitchin components from Hölder distortion.
method Expressing Thurston's metric in terms of Hölder regularity of boundary maps, associating stratified loci, and measuring relative Hölder distortion.
result First known geometrically significant complete metrics on Hitchin components for n>3n > 3.

The paper studies pseudo-Anosov maps from typical Thurston constructions.

problem Estimating the entropy of pseudo-Anosov maps from Thurston's constructions.
method Developed a method to extract information about random walks associated with Thurston's construction.
result Random walks eventually become pseudo-Anosov under certain conditions.

The paper defines a metric on Euclidean triangles and polygons, proving properties and completeness.

problem Defining and analyzing a metric space for Euclidean triangles and polygons.
method Introducing and proving properties of a metric on marked Euclidean triangles, extending to polygons and triangulated surfaces.
result The metric is Finsler and complete, providing formulas for its infinitesimal structure.

We construct a counterexample for an analogue of Masur's criterion in the setting of Teichmüller space equipped with the Thurston metric. For that, we find a minimal, filling, non-uniquely ergodic lamination λλ on the seven-times punctured sphere with uniformly bounded annular projection distances. Then we show that a…

2019-03-03abs ↗pdf ↗

In the context of Thurstons geometrisation program we address the question which compact aspherical 3-manifolds admit Riemannian metrics of nonpositive curvature. We show that non-geometric Haken manifolds generically, but not always, admit such metrics. More precisely, we prove that a Haken manifold with, possibly emp…

1994-10-04abs ↗pdf ↗

We introduce an effective method to solve the ˉ\bar\partial-harmonic forms on the Kodaira-Thurston manifold endowed with an almost complex structure and an Hermitian metric. Using the Weil-Brezin transform, we reduce the elliptic PDE system to countably many linear ODE systems. By solving a fundamental problem on line…

2020-01-29abs ↗pdf ↗

In 1986 William P. Thurston introduced the celebrated (asymmetric) Lipschitz distance on the Teichmueller space of a (closed or punctured) surface. In this paper we extend his work to the Teichmueller space of a surface with boundary endowed the arc distance. In this new setting we construct a large family of geodesics…

2019-11-23abs ↗pdf ↗