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We show that if S is a finite type orientable surface of genus g and p punctures where 3g+p > 4, then EL(S) is (n-1)-connected and (n-1)-locally connected where dim(PML(S))=2n+1=6g+2p-7. Furthermore, if g=0, then EL(S) is homeomorphic to…

Geometric Topology · Mathematics 2014-12-17 David Gabai

We prove that for any closed surface of genus at least four, and any punctured surface of genus at least two, the space of ending laminations is connected. A theorem of E. Klarreich implies that this space is homeomorphic to the Gromov…

Geometric Topology · Mathematics 2019-12-19 Christopher J. Leininger , Saul Schleimer

Let $S$ be a connected non-orientable surface with negative Euler characteristic and of finite type. We describe the possible closures in $\mathcal M\mathcal L$ and $\mathcal P\mathcal M\mathcal L$ of the mapping class group orbits of…

Geometric Topology · Mathematics 2021-11-17 Viveka Erlandsson , Matthieu Gendulphe , Irene Pasquinelli , Juan Souto

We show that every auto-homeomorphism of the unmeasured lamination space of an orientable surface of finite type is induced by a unique extended mapping class unless the surface is a sphere with at most four punctures or a torus with at…

Geometric Topology · Mathematics 2011-12-30 Ken'ichi Ohshika

We prove that for any orientable connected surface of finite type which is not a a sphere with at most four punctures or a torus with at most two punctures, any homeomorphism of the space of geodesic laminations of this surface, equipped…

Geometric Topology · Mathematics 2012-03-27 Charalampos Charitos , Ioannis Papadoperakis , Athanase Papadopoulos

We prove that every closed orientable surface S of negative Euler characteristic admits a pair of finite-degree covers which are length isospectral over S but generically not simple length isospectral over S. To do this, we first…

Geometric Topology · Mathematics 2023-07-19 Tarik Aougab , Max Lahn , Marissa Loving , Nicholas Miller

We consider properly immersed finite topology minimal surfaces S in complete finite volume hyperbolic 3-manifolds N, and in M x S(1), where M is a complete hyperbolic surface of finite area. We prove S has finite total curvature equal to…

Differential Geometry · Mathematics 2013-04-08 Pascal Collin , Laurent Hauswirth , Harold Rosenberg

We construct for every connected surface $S$ of finite negative Euler characteristic and every $H \in [0,1)$, a hyperbolic 3-manifold $N(S,H)$ of finite volume and a proper, two-sided, totally umbilic embedding $f\colon S\to N(S,H)$ with…

Differential Geometry · Mathematics 2020-07-10 Colin Adams , William H. Meeks , Alvaro K. Ramos

We show that the algebraic automorphism group of the SL(2,C) character variety of a closed orientable surface with negative Euler characteristic is a finite extension of its mapping class group. Along the way, we provide a simple…

Geometric Topology · Mathematics 2026-01-14 Julien Marché , Christopher-Lloyd Simon

We prove, for any n, that there is a closed connected orientable surface S so that the hyperbolic space H^n almost-isometrically embeds into the Teichm\"uller space of S, with quasi-convex image lying in the thick part. As a consequence,…

Geometric Topology · Mathematics 2013-02-06 Christopher J. Leininger , Saul Schleimer

Let S be a compact, connected surface and H in C^2(T^* S) a Tonelli Hamiltonian. This note extends V. V. Kozlov's result on the Euler characteristic of S when H is real-analytically integrable, using a definition of topologically-tame…

Dynamical Systems · Mathematics 2013-10-14 Leo T. Butler

The main goal of this article is to relate asymptotic geometric properties on a tower of coverings of a non-compact K\"ahler manifold of finite volume with reasonable geometric assumptions to its universal covering. Applicable examples…

Algebraic Geometry · Mathematics 2012-04-27 Sai-Kee Yeung

In this paper, we determine the Euler characteristics and signatures of the exact symplectic fillings of the contact double, 3-fold or 4-fold cyclic covers of the standard contact 3-sphere branched over certain transverse quasi-positive…

Geometric Topology · Mathematics 2022-05-31 Youlin Li , Yuhe Zhang

We determine which connected surfaces can be partitioned into topological circles. There are exactly seven such surfaces up to homeomorphism: those of finite type, of Euler characteristic zero, and with compact boundary components. As a…

General Topology · Mathematics 2011-01-04 Gábor Moussong , Nándor Simányi

Using quasiconformal mappings, we prove that any Riemann surface of finite connectivity and finite genus is conformally equivalent to an intrinsic circle domain U in a compact Riemann surface S. This means that each connected component B of…

Complex Variables · Mathematics 2013-11-05 Edward Crane

In this note we prove an effective characterization of when two finite-degree covers of a connected, orientable surface of negative Euler characteristic are isomorphic in terms of which curves have simple elevations, weakening the…

Geometric Topology · Mathematics 2023-07-20 Tarik Aougab , Max Lahn , Marissa Loving , Nicholas Miller

A lamination $\lambda$ is $\epsilon$-thick (with respect to a basepoint $X$), if the Teichm\"uller ray from $X$ in the direction of $\lambda$ stays in the $\epsilon$-thick part. We show that, for surfaces of high enough genus, any two…

Geometric Topology · Mathematics 2024-10-31 Jon Chaika , Sebastian Hensel

Extending our previous work on eigenvalues of closed surfaces and work of Otal and Rosas, we show that a complete Riemannian surface S of finite type and negative Euler characteristic has at most negative of the Euler characteristics many…

Differential Geometry · Mathematics 2019-02-20 Sugata Mondal , Werner Ballmann , Henrik Matthiesen

We prove that any complete, embedded minimal surface $M$ with finite topology in a homogeneous three-manifold $N$ has positive injectivity radius. When one relaxes the condition that $N$ be homogeneous to that of being locally homogeneous,…

Differential Geometry · Mathematics 2016-10-19 William H. Meeks , Joaquin Perez

In this paper we study the boundary at infinity of the curve complex $\mathcal{C}(S)$ of a surface $S$ of finite type and the relative Teichm\"{u}ller space $\mathcal{T}_{el}(S)$ obtained from the Teichm\"{u}ller space by collapsing each…

Geometric Topology · Mathematics 2018-03-29 Erica Klarreich
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