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Related papers: Almost isometries between Teichm\"uller spaces

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An expansion is developed for the Weil-Petersson Riemann curvature tensor in the thin region of the Teichm\"{u}ller and moduli spaces. The tensor is evaluated on the gradients of geodesic-lengths for disjoint geodesics. A precise lower…

Differential Geometry · Mathematics 2011-10-05 Scott A. Wolpert

Geometric models and Teichm\"uller structures have been introduced for the space of smooth expanding circle endomorphisms and for the space of uniformly symmetric circle endomorphisms. The latter one is the completion of the previous one…

Dynamical Systems · Mathematics 2020-06-30 Yunping Jiang

We define metrics on Culler-Vogtmann space, which are an analogue of the Teichmuller metric and are constructed using stretching factors. In fact the metrics we study are related, one being a symmetrised version of the other. We investigate…

Group Theory · Mathematics 2011-07-22 Stefano Francaviglia , Armando Martino

Using a special metric in the space of sequences, we give a geometric description of almost periodic sets in the $k$-dimensional Euclidean space. We prove the completeness of the space of almost periodic sets and some analogue of the…

Metric Geometry · Mathematics 2010-02-02 S. Favorov , Ye. Kolbasina

We find a remarkably simple relationship between the following two models of the tangent space to the Universal Teichm\"uller Space: (1) The real-analytic model consisting of Zygmund class vector fields on the unit circle; (2) The…

alg-geom · Mathematics 2008-02-03 Subhashis Nag

We introduce a new method for studying length spectrum rigidity problems based on a combination of ideas from dynamical systems and geometric group theory. This allows us to compare the marked length spectrum of metrics and distance-like…

Geometric Topology · Mathematics 2024-08-05 Stephen Cantrell , Eduardo Reyes

This paper investigates quasi-isometries between graphs with variable edge lengths. A quasi-isometry is a mapping between metric spaces that approximately preserves distances, allowing for a bounded amount of additive and multiplicative…

Combinatorics · Mathematics 2025-03-11 James Davies , Meike Hatzel , Robert Hickingbotham

We study the Teichm\"uller space of negatively curved metrics on a high dimensional manifold, with applications to bundles with negatively curved fibers.

Differential Geometry · Mathematics 2010-03-23 F. T. Farrell , P. Ontaneda

We construct new coordinates for the Teichm\"uller space Teich of a punctured torus into $\bold{R} \times\bold{R}^+$. The coordinates depend on the representation of Teich as a space of marked Kleinian groups $G_\mu$ that depend…

Geometric Topology · Mathematics 2016-09-06 Linda Keen , Caroline Series

This paper shows that there is a mapping class group-equivariant deformation retraction of the Teichm\"uller space of a closed, orientable surface onto a cell complex of dimension equal to the virtual cohomological dimension of the mapping…

Geometric Topology · Mathematics 2025-08-06 Ingrid Irmer

We introduce Fenchel-Nielsen coordinates on Teicm\"uller spaces of surfaces of infinite type. The definition is relative to a given pair of pants decomposition of the surface. We start by establishing conditions under which any pair of…

Geometric Topology · Mathematics 2018-09-25 Daniele Alessandrini , Lixin Liu , Athanase Papadopoulos , Weixu Su , Zongliang Sun

In this work we investigate Gromov-Hausdorff limits of compact surfaces carrying length metrics. More precisely, we consider the case where all surfaces have the same Euler characteristic. We give a complete description of the limit spaces…

Metric Geometry · Mathematics 2024-07-03 Tobias Dott

Given a closed surface endowed with a volume form, we equip the space of compatible Riemannian structures with the structure of an infinite-dimensional symplectic manifold. We show that the natural action of the group of volume-preserving…

Differential Geometry · Mathematics 2019-09-26 Tobias Diez , Tudor S. Ratiu

We introduce the tractor formalism from conformal geometry to the study of smooth metric measure spaces. In particular, this gives rise to a correspondence between quasi-Einstein metrics and parallel sections of certain tractor bundles. We…

Differential Geometry · Mathematics 2012-07-30 Jeffrey S. Case

We prove that the supremum of principal curvatures of a minimal embedded disc in hyperbolic three-space spanning a quasicircle in the boundary at infinity is estimated in a sublinear way by the norm of the quasicircle in the sense of…

Differential Geometry · Mathematics 2016-11-10 Andrea Seppi

The space of measured laminations $\mathcal{ML}(\Sigma)$ associated to a topological surface $\Sigma$ of genus $g$ with $n$ punctures is an integral piecewise linear manifold of real dimension $6g-6+2n$. There is also a natural symplectic…

Geometric Topology · Mathematics 2019-02-13 Leonid Monin , Vanya Telpukhovskiy

It is proved the following theorem, if $w$ is a quasiconformal harmonic mappings between two Riemann surfaces with smooth boundary and aproximate analytic metric, then $w$ is a quasi-isometry with respect to Euclidean metric.

Complex Variables · Mathematics 2011-08-03 David Kalaj

In this paper we review some results on the Riemannian and almost Hermitian geometry of twistor spaces of oriented Riemannian $4$-manifolds with emphasis on their curvature properties.

Differential Geometry · Mathematics 2021-02-09 Johann Davidov , Oleg Mushkarov

We show that a locally symmetric space of noncompact type and with finite volume is quasi-isometric to the euclidean cone over a finite simplicial complex. A detailed analysis of metric properties yields a proof of a conjecture of Siegel.

Differential Geometry · Mathematics 2007-05-23 E. Leuzinger

The aim of this paper is to investigate the equivalence conditions for uniform perfectness of quasi-metric spaces. We also obtain the invariant property of uniform perfectness under quasim\"obius maps in quasi-metric spaces. In the end, two…

Complex Variables · Mathematics 2019-03-05 Qingshan Zhou , Yaxiang Li , Ailing Xiao
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