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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 prove sharp bounds for the product and the sum of two hyperbolic distances between the opposite sides of hyperbolic Lambert quadrilaterals in the unit disk. Furthermore, we study the images of Lambert quadrilaterals under quasiconformal…

Metric Geometry · Mathematics 2013-07-11 Matti Vuorinen , Gendi Wang

How much cutting is needed to simplify the topology of a surface? We provide bounds for several instances of this question, for the minimum length of topologically non-trivial closed curves, pants decompositions, and cut graphs with a given…

Combinatorics · Mathematics 2015-04-08 Éric Colin de Verdière , Alfredo Hubard , Arnaud de Mesmay

We present an inverse problem which uses the renormalized area functional on minimal submanifolds to recover the expansion of asymptotically hyperbolic, conformally compact metrics which are partially even to high order. We use a rigidity…

Differential Geometry · Mathematics 2024-01-17 Jared Marx-Kuo

We study the relationship between two concepts: cut limits and hyperbolic extensions.

Differential Geometry · Mathematics 2016-09-21 Pedro Ontaneda

We present a construction of sequences of closed hyperbolic surfaces that have long systoles which form pants decompositions of these surfaces. The length of the systoles of these surfaces grows logarithmically as a function of their genus.

Geometric Topology · Mathematics 2016-09-05 Bram Petri

In this paper we obtain a bound on the number of isometry classes of finite area hyperbolic surfaces which are length isospectral to a given surface depending only on the topological type of the surface and the length of the shortest closed…

Metric Geometry · Mathematics 2014-03-25 Weston Ungemach

This note is about a type of quantitative density of closed geodesics on closed hyperbolic surfaces. The main results are upper bounds on the length of the shortest closed geodesic that $\varepsilon$-fills the surface.

Geometric Topology · Mathematics 2017-05-31 Ara Basmajian , Hugo Parlier , Juan Souto

We define a new notion of translations in the hyperbolic plane and explicitly solve the equation of the curve shortening flow. Next, we consider the class of ancient convex solutions and solve the equation of the curve shortening flow when…

Differential Geometry · Mathematics 2026-05-14 Ivan Krznarić , Rafael López

We investigate the terms arising in an identity for hyperbolic surfaces proved by Luo and Tan, namely showing that they vary monotonically in terms of lengths and that they verify certain convexity properties. Using these properties, we…

Geometric Topology · Mathematics 2020-02-10 Nhat Minh Doan , Hugo Parlier , Ser Peow Tan

The boundary at infinity of a quasifuchsian hyperbolic manifold is equiped with a holomorphic quadratic differential. Its horizontal measured foliation $f$ can be interpreted as the natural analog of the measured bending lamination on the…

Geometric Topology · Mathematics 2017-08-08 Jean-Marc Schlenker

We prove a volume inequality for 3-manifolds having C^0 metrics "bent" along a hypersurface, and satisfying certain curvature pinching conditions. The result makes use of Perelman's work on Ricci flow and geometrization of closed…

Differential Geometry · Mathematics 2007-11-06 Ian Agol , Nathan M. Dunfield , Peter A. Storm , William P. Thurston

In this paper we introduce the hyperbolic mean curvature flow and prove that the corresponding system of partial differential equations are strictly hyperbolic, and based on this, we show that this flow admits a unique short-time smooth…

Differential Geometry · Mathematics 2010-04-19 Chun-Lei He , De-Xing Kong , Kefeng Liu

We show that the renormalized volume of a quasifuchsian hyperbolic 3-manifold is equal, up to an additive constant, to the volume of its convex core. We also provide a precise upper bound on the renormalized volume in terms of the…

Differential Geometry · Mathematics 2017-01-31 Jean-Marc Schlenker

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

This is the second in a series of papers where we estab- lish skin structural concepts and results for singular area minimizing hypersurfaces. Here we conformally unfold these spaces to complete Gromov hyperbolic spaces with bounded…

Differential Geometry · Mathematics 2015-12-29 Joachim Lohkamp

Given a Riemannian surface, we consider a naturally embedded graph which captures part of the topology and geometry of the surface. By studying this graph, we obtain results in three different directions. First, we find bounds on the…

Differential Geometry · Mathematics 2014-10-02 Florent Balacheff , Hugo Parlier , Stéphane Sabourau

This article discusses inequalities on lengths of curves on hyperbolic surfaces. In particular, a characterization is given of which topological types of curves and multicurves always have a representative that satisfies a length inequality…

Geometric Topology · Mathematics 2021-09-10 Hugo Parlier

We compute the Laplacian spectra of singular area-minimising hypersurfaces in the hyperbolic space with prescribed asymptotic data. We also obtain similar results in higher codimension, and explore related extremal properties of the bottom…

Differential Geometry · Mathematics 2025-04-29 Gerasim Kokarev

We investigate the maximal solid tubes around short simple geodesics in hyperbolic three-manifolds and how complex length of curves relate to closed, incompressible, least area minimal surfaces. As applications, we prove, there are some…

Differential Geometry · Mathematics 2018-11-29 Zheng Huang , Biao Wang