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Related papers: On rigidity and convergence of circle patterns

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A ``hyperideal circle pattern'' in $S^2$ is a finite family of oriented circles, similar to the ``usual'' circle patterns but such that the closed disks bounded by the circles do not cover the whole sphere. Hyperideal circle patterns are…

Geometric Topology · Mathematics 2007-05-23 Jean-Marc Schlenker

In this paper, maximum principles for Euclidean and hyperbolic discrete conformal structures on polyhedral surfaces are established. These maximum principles unify and generalize the maximum principles for vertex scalings and different…

Metric Geometry · Mathematics 2025-06-19 Yanwen Luo , Xu Xu , Chao Zheng

In this paper we provide a framework for the study of isoperimetric problems in finitely generated group, through a combinatorial study of universal covers of compact simplicial complexes. We show that, when estimating filling functions,…

Geometric Topology · Mathematics 2015-07-07 Jason Behrstock , Cornelia Drutu

We establish a correspondence between the dimer model on a bipartite graph and a circle pattern with the combinatorics of that graph, which holds for graphs that are either planar or embedded on the torus. The set of positive face weights…

Mathematical Physics · Physics 2022-10-28 Richard Kenyon , Wai Yeung Lam , Sanjay Ramassamy , Marianna Russkikh

We show that a conformal connection on a closed oriented surface $\Sigma$ of negative Euler characteristic preserves precisely one conformal structure and is furthermore uniquely determined by its unparametrised geodesics. As a corollary it…

Differential Geometry · Mathematics 2015-08-19 Thomas Mettler

In this paper, we introduce the discrete conformal structures on surfaces with boundary in an axiomatic approach, which ensures that the Poincar\'{e} dual of an ideally triangulated surface with boundary has a good geometric structure.Then…

Differential Geometry · Mathematics 2024-09-09 Xu Xu , Chao Zheng

Two triangle meshes are conformally equivalent if for any pair of incident triangles the absolute values of the corresponding cross-ratios of the four vertices agree. Such a pair can be considered as preimage and image of a discrete…

Complex Variables · Mathematics 2018-10-17 Ulrike Bücking

In this paper, we prove that every conformal minimal immersion of a compact bordered Riemann surface $M$ into a minimally convex domain $D\subset \mathbb{R}^3$ can be approximated, uniformly on compacts in $\mathring M=M\setminus bM$, by…

Differential Geometry · Mathematics 2020-04-09 Antonio Alarcon , Barbara Drinovec Drnovsek , Franc Forstneric , Francisco J. Lopez

We prove that the class of convex-cocompact Kleinian groups is quasi-isometrically rigid. We also establish that a word hyperbolic group with a planar boundary different from the sphere is virtually a convex-cocompact Kleinian group…

Group Theory · Mathematics 2014-05-26 Peter Haïssinsky

In this paper, we study some intrinsic characterization of conformally compact manifolds. We show that, if a complete Riemannian manifold admits an essential set and its curvature tends to -1 at infinity in certain rate, then it is…

Differential Geometry · Mathematics 2009-10-26 Xue Hu , Jie Qing , Yuguang Shi

3 pages presentation of the theory of discrete conformal parameterization using circle patterns or its linearized theory. Principal results and ideas.

Mathematical Physics · Physics 2008-02-12 Christian Mercat

In this survey we present the history and recent progress on several fundamental (quasi)conformal uniformization problems in the complex plane. Uniformization refers to the process of mapping a space to a canonical model by means of a…

Complex Variables · Mathematics 2026-03-17 Dimitrios Ntalampekos

A well-known theorem of Rodin \& Sullivan, previously conjectured by Thurston, states that the circle packing of the intersection of a lattice with a simply connected planar domain $\Omega$ into the unit disc $\mathbb{D}$ converges to a…

Probability · Mathematics 2020-03-13 Agelos Georgakopoulos , Christoforos Panagiotis

We generalize Cauchy's celebrated theorem on the global rigidity of convex polyhedra in Euclidean $3$-space $\mathbb{E}^{3}$ to the context of circle polyhedra in the $2$-sphere $\mathbb{S}^{2}$. We prove that any two convex and proper…

Metric Geometry · Mathematics 2017-06-05 John C. Bowers , Philip L. Bowers , Kevin Pratt

We give a negative answer to the rigidity conjecture of He and Schramm by constructing a rigid circle domain $\Omega$ on the Riemann sphere with conformally non-removable boundary. Here rigidity means that every conformal map from $\Omega$…

Complex Variables · Mathematics 2024-10-01 Kai Rajala

Here is an English summary of the abstract: This research investigates a geometric dynamical mechanism within a specific class of domains that contain a fixed convex core. By using a radial structure that links the boundaries of the core…

Dynamical Systems · Mathematics 2026-05-13 Mohammed Barkatou , Mohamed El Morsalani

We develop a Thurston-like theory to characterize geometrically finite rational maps, then apply it to study pinching and plumbing deformations of rational maps. We show that in certain conditions the pinching path converges uniformly and…

Dynamical Systems · Mathematics 2015-08-07 Guizhen Cui , Lei Tan

Let $\Sigma$ be a compact Riemann surface and $D_1,...,D_n$ a finite number of pairwise disjoint closed disks of $\Sigma$. We prove the existence of a proper harmonic map into the Euclidean plane from a hyperbolic domain $\Omega$ containing…

Differential Geometry · Mathematics 2009-06-16 Antonio Alarcon , Jose A. Galvez

Given a compact manifold with boundary with unknown Riemannian metric. The problem is to reconstruct the metric in a class of conformal metrics from knowledge of lengths of all closed geodesics (kinematic data). An integral inequality is…

Differential Geometry · Mathematics 2012-06-05 Victor Palamodov

Motivated by a question of Tsai-Tsui-Wang, we consider the rigidity of map from manifolds with positive Ricci curvature to manifolds with positive sectional curvature. We show that if the Ricci curvature of the domain dominates that of the…

Differential Geometry · Mathematics 2024-11-25 Man-Chun Lee , Jingbo Wan
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