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

数学物理 · 物理学 2008-02-12 Christian Mercat

This paper develops a discrete theory of real Riemann surfaces based on quadrilateral cellular decompositions (quad-graphs) and a linear discretization of the Cauchy-Riemann equations. We construct a discrete analogue of an antiholomorphic…

复变函数 · 数学 2026-01-01 Johanna Düntsch , Felix Günther

A proof of the uniformization theorem of Riemann surface is given with only elementary properties of holomorphic functions and not using the paracompacity of the surface. This proof leans on an holomorphic version of the topological…

复变函数 · 数学 2025-11-06 Alexis Marin , Dorothea Vienne-Pollak

A discrete conformality for polyhedral metrics on surfaces is introduced in this paper which generalizes earlier work on the subject. It is shown that each polyhedral metric on a surface is discrete conformal to a constant curvature…

几何拓扑 · 数学 2013-09-18 Xianfeng Gu , Feng Luo , Jian Sun , Tianqi Wu

We give an elementary and self-contained proof of the uniformization theorem for non-compact simply-connected Riemann surfaces.

复变函数 · 数学 2021-09-06 Cipriana Anghel , Rares Stan

We discuss a notion of discrete conformal equivalence for decorated piecewise euclidean surfaces (PE-surface), that is, PE-surfaces with a choice of circle about each vertex. It is closely related to inversive distance and hyperideal circle…

几何拓扑 · 数学 2023-06-13 Alexander I. Bobenko , Carl O. R. Lutz

We survey structure-preserving discretizations of minimal surfaces in Euclidean space. Our focus is on a discretization defined via parallel face offsets of polyhedral surfaces, which naturally leads to a notion of vanishing mean curvature…

微分几何 · 数学 2026-04-14 Wai Yeung Lam , Masashi Yasumoto

The notions of discrete conformality on triangle meshes have rich mathematical theories and wide applications. The related notions of discrete uniformizations on triangle meshes, suggest efficient methods for computing the uniformizations…

几何拓扑 · 数学 2020-09-21 Tianqi Wu , Xiaoping Zhu

In this paper, by combining techniques from Ricci flow and algebraic geometry, we prove the following generalization of the classical uniformization theorem of Riemann surfaces. Given a complete noncompact complex two dimensional K\"ahler…

微分几何 · 数学 2007-05-23 Bing-Long Chen , Siu-Hung Tang , Xi-Ping Zhu

In this paper, we introduce a new discretization of the Gaussian curvature on surfaces, which is defined as the quotient of the angle defect and the area of some dual cell of a weighted triangulation at the conic singularity. A discrete…

微分几何 · 数学 2023-09-12 Xu Xu , Chao Zheng

After a historical discussion of classical uniformisation results for Riemann surfaces, of problems appearing in higher dimensions, and of uniformisation results for projective manifolds with trivial or ample canonical bundle, we introduce…

代数几何 · 数学 2019-02-22 Daniel Greb , Stefan Kebekus , Behrouz Taji

In this paper, we study a natural discretization of the smooth Gaussian curvature on surfaces, which is defined as the quotient of the angle defect and the area of a geodesic disk at a vertex of a polyhedral surface. It is proved that each…

微分几何 · 数学 2023-09-14 Xu Xu , Chao Zheng

We consider ``hyperideal'' circle patterns, i.e. patterns of disks appearing in the definition of the Delaunay decomposition associated to a set of disjoint disks, possibly with cone singularities at the center of those disks. Hyperideal…

微分几何 · 数学 2009-01-20 Jean-Marc Schlenker

A discrete conformality for hyperbolic polyhedral surfaces is introduced in this paper. This discrete conformality is shown to be computable. It is proved that each hyperbolic polyhedral metric on a closed surface is discrete conformal to a…

几何拓扑 · 数学 2014-01-21 Xianfeng Gu , Ren Guo , Feng Luo , Jian Sun , Tianqi Wu

We provide a constructive, variational proof of Rivin's realization theorem for ideal hyperbolic polyhedra with prescribed intrinsic metric, which is equivalent to a discrete uniformization theorem for spheres. The same variational method…

度量几何 · 数学 2025-01-07 Boris Springborn

We analyze the problem of global reconstruction of functions as accurately as possible, based on partial information in the form of a truncated power series at some point, and additional analyticity properties. This situation occurs…

复变函数 · 数学 2022-05-30 Ovidiu Costin , Gerald V. Dunne

In this note we discuss the geometry of Riemannian surfaces having a discrete set of singular points. We assume the conformal structure extends through the singularities and the curvature is integrable. Such points are called \emph{simple…

微分几何 · 数学 2022-01-11 Marc Troyanov

In classical differential geometry, a central question has been whether abstract surfaces with given geometric features can be realized as surfaces in Euclidean space. Inspired by the rich theory of embedded triply periodic minimal…

微分几何 · 数学 2018-09-18 Dami Lee

We introduce decorated piecewise hyperbolic and spherical surfaces and discuss their discrete conformal equivalence. A decoration is a choice of circle about each vertex of the surface. Our decorated surfaces are closely related to…

几何拓扑 · 数学 2023-10-27 Alexander I. Bobenko , Carl O. R. Lutz

We detail the theory of Discrete Riemann Surfaces. It takes place on a cellular decomposition of a surface, together with its Poincar\'e dual, equipped with a discrete conformal structure. A lot of theorems of the continuous theory follow…

复变函数 · 数学 2008-02-13 Christian Mercat
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