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Related papers: On uniqueness of coarse median structures

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We construct a quasiconformally homogeneous hyperbolic Riemann surface-other than the hyperbolic plane-that does not admit a bounded pants decomposition. Also, given a connected orientable topological surface of infinite type with compact…

Geometric Topology · Mathematics 2021-06-28 Ara Basmajian , Hugo Parlier , Nicholas G. Vlamis

We analyze the coarse geometry of the Weil-Petersson metric on Teichm\"uller space, focusing on applications to its synthetic geometry (in particular the behavior of geodesics). We settle the question of the strong relative hyperbolicity of…

Geometric Topology · Mathematics 2014-11-11 Jeffrey Brock , Howard Masur

We study the global behavior of (weakly) stable constant mean curvature hypersurfaces in general Riemannian manifolds. By using harmonic function theory, we prove some one-end theorems which are new even for constant mean curvature…

Differential Geometry · Mathematics 2007-05-23 Xu Cheng , Leung-fu Cheung , Detang Zhou

In this paper, we study the coarse embedding into Banach space. We proved that under certain conditions, the property of embedding into Banach space can be preserved under taking the union the metric spaces. For a group $G$ strongly…

Metric Geometry · Mathematics 2011-05-18 Qinggang Ren

This paper establishes a new combinatorial framework for the study of coarse median spaces, bridging the worlds of asymptotic geometry, algebra and combinatorics. We introduce a simple and entirely algebraic notion of coarse median algebra…

Metric Geometry · Mathematics 2020-06-30 Graham A. Niblo , Nick Wright , Jiawen Zhang

The existence of closed hypersurfaces of prescribed scalar curvature in globally hyperbolic Lorentzian manifolds is proved provided there are barriers.

Differential Geometry · Mathematics 2007-05-23 Claus Gerhardt

We investigate the structure of isometric subgraphs of hypercubes (i.e., partial cubes) which do not contain finite convex subgraphs contractible to the 3-cube minus one vertex $Q^-_3$ (here contraction means contracting the edges…

Combinatorics · Mathematics 2019-08-26 Victor Chepoi , Kolja Knauer , Tilen Marc

We study the boundaries of relatively hyperbolic HHGs. Using the simplicial structure on the hierarchically hyperbolic boundary, we characterize both relative hyperbolicity and being thick of order 1 among HHGs. In the case of relatively…

Group Theory · Mathematics 2023-05-29 Carolyn Abbott , Jason Behrstock , Jacob Russell

We construct compact hyperbolic 3-manifolds with totally geodesic boundary, such that the closed 3-pseudomanifolds obtained by coning off the boundary components are negatively curved and contain locally convex subspaces whose fundamental…

Geometric Topology · Mathematics 2026-02-11 Jason Manning , Lorenzo Ruffoni

We give an elementary construction of polyhedra whose links are connected bipartite graphs, which are not necessarily isomorphic pairwise. We show, that the fundamental groups of some of our polyhedra contain surface groups. In particular,…

Combinatorics · Mathematics 2007-05-23 Alina Vdovina

We consider closed hypersurfaces smoothly immersed in hyperbolic manifolds up to homotopy and commensurability. We prove that if a closed hyperbolic manifold $M$ contains a sequence of asymptotically geodesic hypersurfaces, then $\pi_1(M)$…

Geometric Topology · Mathematics 2026-03-27 Xiaolong Hans Han , Ruojing Jiang

We produce a large class of hyperbolic homology 3-spheres admitting arbitrarily many distinct tight contact structures. We also produce a sub-class admitting arbitrarily many distinct tight contact structures within the same homotopy class…

Geometric Topology · Mathematics 2024-05-29 Mahan Mj , Balarka Sen

Cutting a hyperbolic surface X along a simple closed multi-geodesic results in a hyperbolic structure on the complementary subsurface. We study the distribution of the shapes of these subsurfaces in moduli space as boundary lengths go to…

Geometric Topology · Mathematics 2022-08-10 Francisco Arana-Herrera , Aaron Calderon

We identify a condition that prevents a hyperbolic space from being quasi-isometric to the curve complex of any non-sporadic surface. Our result applies to several hyperbolic complexes, including arc complexes, disk complexes,…

Geometric Topology · Mathematics 2025-07-14 Javier Aramayona , Hugo Parlier , Richard Webb

We study the intrinsic geometry of area minimizing (and also of almost minimizing) hypersurfaces from a new point of view by relating this subject to quasiconformal geometry. For any such hypersurface we define and construct a so-called…

Differential Geometry · Mathematics 2018-05-08 Joachim Lohkamp

We give a proof of an unpublished result of Thurston showing that given any hyperbolic metric on a surface of finite type with nonempty boundary, there exists another hyperbolic metric on the same surface for which the lengths of all simple…

Geometric Topology · Mathematics 2009-09-09 Athanase Papadopoulos , Guillaume Théret

We prove that if a proper metric space is quasi-isometric to a finitely generated group and to a space with a horoball over a finitely generated group, then that space is quasi-isometric to a rank-one symmetric space or the real line.

Group Theory · Mathematics 2026-04-16 Daniel Groves , Emily Stark , Genevieve S. Walsh , Kevin Whyte

Suppose that N is a geometrically finite orientable hyperbolic 3-manifold. Let P(N,C) be the space of all geometrically finite hyperbolic structures on N whose convex core is bent along a set C of simple closed curves. We prove that the map…

Geometric Topology · Mathematics 2007-05-23 Young-Eun Choi , Caroline Series

We prove a generalization of the fellow traveller property for a certain type of quasi-geodesics and use it to present three equivalent geometric formulations of the bounded reduction property and prove that it is equivalent to preservation…

Group Theory · Mathematics 2021-10-07 André Carvalho

Following Santal\'{o}'s approach, we prove several characterizations of a disc among bodies of constant width, constant projections lengths, or constant section lengths on given families of geodesics.

Metric Geometry · Mathematics 2019-10-24 M. Angeles Alfonseca , Michelle Cordier , Dan I. Florentin