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48 results for Thurston parameterization

Bounds projective structure norms by bending lamination lengths.

problem Bounding the L2L^2-norm of projective structures.
method Using the Thurston parameterization and Krasnov-Schlenker's WW-volume theory.
result Upper bounds on L2L^2-norm of holomorphic quadratic differential by the length of bending lamination.

Thurston related CP1\mathbb{C}{\rm P}^1-structures (complex projective structures) and equivariant pleated surfaces in the hyperbolic-three space H3\mathbb{H}^3, in order to give a parameterization of the deformation space of CP1\mathbb{C}{\rm P}^1-structures. In this note, we summarize Thurston's parametrization of $\ma…

2019-04-01abs ↗pdf ↗

This is a survey of the theory of complex projective (CP^1) structures on compact surfaces. After some preliminary discussion and definitions, we concentrate on three main topics: (1) Using the Schwarzian derivative to parameterize the moduli space (2) Thurston's parameterization of the moduli space using grafting (3) …

2009-02-11abs ↗pdf ↗

A cylindrical stretch line is a stretch line, in the sense of Thurston, whose horocyclic lamination is a weighted multicurve. In this paper, we show that two correctly parameterized cylindrical lines are parallel if and only if these lines converge towards the same point in Thurston's boundary of Teichmüller space.

2009-07-10abs ↗pdf ↗

Twisted SL2C\operatorname{SL}_2 \mathbb{C} local systems on surfaces of finite type appear often in geometry and physics. Most of them arise geometrically as local systems of charts for pleated hyperbolic structures. Bonahon and Thurston's "shear-bend coordinates" parameterize these local systems of charts. On a surface …

2015-10-20abs ↗pdf ↗

Let ΣΣ be a hyperbolic link with mm components in a 3-dimensional manifold XX. In this paper, we will show that the moduli space of marked hyperbolic cone structures on the pair (X,Σ)(X, Σ) with all cone angle less than 2π/32π/3 is an mm-dimensional open cube, parameterized naturally by the mm cone angles. As a corolla…

1998-05-28abs ↗pdf ↗

We give a Thurston-like definition for laminations on higher Teichmuller spaces associated to a surface SS and a semi-simple group GG for GSLmG-SL_m and PGLmPGL_m. The case G=SL2G=SL_2 or PGL2PGL_2 corresponds to the classical theory of laminations. Our construction involves positive configurations of points in the affine bui…

2012-09-04abs ↗pdf ↗

We use parameterized Morse theory on the pages of an open book decomposition to efficiently encode the contact topology in terms of a labelled graph on a disjoint union of tori (one per binding component). This construction allows us to generalize the notion of the front projection of a Legendrian knot from the standar…

2015-08-21abs ↗pdf ↗

The paper introduces combinatorial curvature and flow for polyhedral surfaces, proving rigidity and solving the Yamabe problem.

problem Discrete conformal structures on polyhedral surfaces and their rigidity.
method Parameterized combinatorial curvature, combinatorial α-Ricci flow, and flow extension through singularities.
result Existence and convergence of combinatorial α-Ricci flow for solving the Yamabe problem.

This paper was first written in 1990, but was never published. In it, the author presents a novel approach to the study of constant curvature spacetimes in 2+1 dimensions. A parameterization of flat 2+1-dimensional domains of dependence is given in terms of measured geodesic laminations. There is also an interesting re…

2007-06-11abs ↗pdf ↗

The paper extends Thurston's method to new variants of Mather-Thurston theorem.

problem Proving new variants of Mather-Thurston theorem for PL homeomorphisms and contactomorphisms.
method Generalizing Thurston's technique to prove new variants of Mather-Thurston theorem for PL homeomorphisms and contactomorphisms.
result The paper answers questions posed by Gelfand-Fuks and Greenberg on PL foliations and Rybicki on contactomorphisms.

Article explores Thurston's circle packing theorem in 3-manifold geometry.

problem Understanding Thurston's circle packing theorem in 3-manifold geometry.
method Analyzes the Koebe-Andre'ev-Thurston Theorem and its relation to Thurston's circle packing theorem.
result Illustrates the significance of Thurston's circle packing theorem in 3-manifold geometry.

We establish basic geometric and topological properties of Thurston's Master Teapot and the Thurston set for superattracting unimodal self-maps of intervals. In particular, the Master Teapot is connected, contains the unit cylinder, and its intersection with a set D×{c}\mathbb{D} \times \{c\} grows monotonically with cc.…

2019-02-27abs ↗pdf ↗

In earlier work, we had shown that Cannon-Thurston maps exist for Kleinian surface groups. In this paper we prove that pre-images of points are precisely end-points of leaves of the ending lamination whenever the Cannon-Thurston map is not one-to-one. In particular, the Cannon-Thurston map is finite-to-one. This comple…

2007-01-25abs ↗pdf ↗

We show that Cannon-Thurston maps exist for degenerate free groups without parabolics, i.e. for handlebody groups. Combining these techniques with earlier work proving the existence of Cannon-Thurston maps for surface groups, we show that Cannon-Thurston maps exist for arbitrary finitely generated Kleinian groups witho…

2010-02-04abs ↗pdf ↗

We show that link Floer homology detects the Thurston norm of a link complement. As an application, we show that the Thurston polytope of an alternating link is dual to the Newton polytope of its multi-variable Alexander polynomial. To illustrate these techniques, we also compute the Thurston polytopes of several speci…

2006-01-25abs ↗pdf ↗

The paper extends Menelaus' and Ceva's theorems to translation triangles in various Thurston geometries.

problem Extending classical theorems to non-Euclidean geometries.
method Using projective models of Thurston geometries and defining a ``surface of a translation-like triangle".
result Generalization of Menelaus' and Ceva's theorems to non-constant curvature Thurston geometries.

Paper shows mapping class group-equivariant Teichmüller space deformation to Thurston spine.

problem Mapping Teichmüller space to Thurston spine.
method Equivariant deformation retraction of Teichmüller space onto a cell complex.
result Thurston spine contains points corresponding to hyperbolic surfaces with shortest geodesics forming polygons.

Constructs Teichmüller curve to study Thurston spine structure.

problem Understanding the structure of Thurston spine in Teichmüller space.
method Constructs a Teichmüller curve and characterizes its intersection with Thurston spine.
result Characterizes Thurston spine as a trivalent tree and equivariant deformation retract of Teichmüller curve.

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.

Numerical study confirms Brennan's conjecture for a counterexample to Thurston's K=2K=2 conjecture.

problem Thurston's K=2K=2 conjecture and Brennan's conjecture in planar domains.
method Numerical analysis of a specific counterexample to Thurston's conjecture.
result The counterexample does not contradict Brennan's conjecture.

The Thurston spine's properties are studied in relation to Morse-Smale complexes.

problem Understanding the Thurston spine's local properties and their global implications.
method Analyzes the Thurston spine as a subset of Teichmüller space and studies its local properties in relation to the systole function.
result The Thurston spine satisfies properties analogous to Morse-Smale complexes, demonstrating its topological significance.

We show that solutions of Thurston equation on triangulated 3-manifolds in a commutative ring carry topological information. We also introduce a homogeneous Thurston equation and a commutative ring associated to triangulated 3-manifolds.

2012-01-11abs ↗pdf ↗

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.

The Euler class conjecture links geometric structures to integral points on the Thurston norm ball.

problem Determining if integral points on the Thurston norm dual ball correspond to geometric structures.
method Examining various geometric, topological, and dynamical structures on 3-manifolds.
result Integral points on the Thurston norm dual ball correspond to the Euler class of taut foliations and other structures.

Graph manifolds' Thurston norms are sums of linear functionals, and every such norm can be realized.

problem Understanding Thurston norms of graph manifolds and their realizability.
method Analyzing the structure of Thurston norms as sums of linear functionals and showing realizability.
result Every Thurston norm of a graph manifold can be expressed as a sum of absolute values of linear functionals with rational coefficients.