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Classical Delaunay surfaces are highly symmetric constant mean curvature (CMC) submanifolds of space forms. We prove the existence of Delaunay-type hypersurfaces in a large class of compact manifolds, using the geometry of cohomogeneity one…

微分几何 · 数学 2016-08-01 Renato G. Bettiol , Paolo Piccione

We study spacelike entire constant mean curvature hypersurfaces in Anti-de Sitter space of any dimension. First, we give a classification result with respect to their asymptotic boundary, namely we show that every admissible sphere…

微分几何 · 数学 2023-08-24 Enrico Trebeschi

In this paper we prove that the only algebraic constant mean curvature (cmc) surfaces in R^3 of order less than four are the planes, the spheres and the cylinders. The method used heavily depends on the efficiency of algorithms to compute…

微分几何 · 数学 2010-02-02 Oscar M. Perdomo

In this paper we consider surfaces of class $C^1$ with continuous prescribed mean curvature in a three-dimensional contact sub-Riemannian manifold and prove that their characteristic curves are of class $C^2$. This regularity result also…

微分几何 · 数学 2015-05-04 Matteo Galli , Manuel Ritoré

We study hypersurfaces of $\mathbb{R}^N$ with constant nonlocal (or fractional) mean curvature. This is the equation associated to critical points of the fractional perimeter functional under a volume constraint. We establish the existence…

微分几何 · 数学 2017-05-29 Xavier Cabre , Mouhamed Moustapha Fall , Tobias Weth

In this paper, we consider a closed Riemannian manifold $M^{n+1}$ with dimension $3\leq n+1\leq 7$, and a compact Lie group $G$ acting as isometries on $M$ with cohomogeneity at least $3$. Suppose the union of non-principal orbits…

微分几何 · 数学 2021-04-01 Zhiang Wu , Tongrui Wang

We characterize constant mean curvature surfaces in the three-dimensional Heisenberg group by a family of flat connections on the trivial bundle $\D \times \GL$ over a simply connected domain $\mathbb{D}$ in the complex plane. In particular…

微分几何 · 数学 2015-01-26 Josef F. Dorfmeister , Jun-ichi Inoguchi , Shimpei Kobayashi

We discuss constant mean curvature bubbletons in Euclidean 3-space via dressing with simple factors, and prove that single bubbletons are not embedded.

微分几何 · 数学 2012-10-23 Martin Kilian

It has been showed by Byde that it is possible to attach a Delaunay-type end to a compact nondegenerate manifold of positive constant scalar curvature, provided it is locally conformally flat in a neighborhood of the attaching point. The…

微分几何 · 数学 2009-11-24 Almir Silva Santos

We consider a family of embedded, mean convex hypersurfaces in a Riemannian manifold which evolve by the mean curvature flow. We show that, given any number $T>0$ and any $\delta>0$, we can find a constant $C_0$ with the following property:…

微分几何 · 数学 2013-11-26 S. Brendle

We use Clifford algebras to construct a unified formalism for studying constant extrinsic curvature immersed surfaces in riemannian and semi-riemannian $3$-manifolds in terms of immersed bilegendrian surfaces in their unitary bundles. As an…

微分几何 · 数学 2023-08-15 Graham Smith

We develop a method that works in general product Riemannian manifold to decompose the three-dimensional steady full compressible Euler system, which is of elliptic-hyperbolic composite-mixed type for subsonic flows. The method is applied…

偏微分方程分析 · 数学 2015-05-13 Li Liu , Gang Xu , Hairong Yuan

In Euclidean 3-space endowed with a Cartesian reference system we consider a class of surfaces, called Delaunay tori, constructed by bending segments of Delaunay cylinders with neck-size $a$ and $n$ lobes along circumferences centered at…

偏微分方程分析 · 数学 2020-11-19 Paolo Caldiroli , Alessandro Iacopetti , Monica Musso

We first prove that, unlike the biharmonic case, there exist triharmonic curves with nonconstant curvature in a suitable Riemannian manifold of arbitrary dimension. We then give the complete classification of triharmonic curves in surfaces…

微分几何 · 数学 2021-08-06 Stefano Montaldo , Alvaro Pampano

We first prove a general gluing theorem which creates new nondegenerate constant mean curvature surfaces by attaching half Delaunay surfaces with small necksize to arbitrary points of any nondegenerate CMC surface. The proof uses the method…

微分几何 · 数学 2007-05-23 Rafe Mazzeo , Frank Pacard , Dan Pollack

We derive intrinsic curvature and radius estimates for compact disks embedded in $\mathbb{R}^3$ with nonzero constant mean curvature and apply these estimates to study the global geometry of complete surfaces embedded in $\mathbb{R}^3$ with…

微分几何 · 数学 2016-09-27 William H. Meeks , Giuseppe Tinaglia

Delaunay has shown that the Delaunay complex of a finite set of points $P$ of Euclidean space $\mathbb{R}^m$ triangulates the convex hull of $P$, provided that $P$ satisfies a mild genericity property. Voronoi diagrams and Delaunay…

计算几何 · 计算机科学 2016-12-12 Jean-Daniel Boissonnat , Ramsay Dyer , Arijit Ghosh , Nikolay Martynchuk

In this paper we study constant angle surfaces in Euclidean 3-space. Even that the result is a consequence of some classical results involving the Gauss map (of the surface), we give another approach to classify all surfaces for which the…

微分几何 · 数学 2009-07-01 Marian Ioan Munteanu , Ana Irina Nistor

In this paper, we prove some convergence theorems for the mean curvature flow of closed submanifolds in the unit sphere $\mathbb{S}^{n+d}$ under integral curvature conditions. As a consequence, we obtain several differentiable sphere…

微分几何 · 数学 2012-04-03 Kefeng Liu , Hongwei Xu , Entao Zhao

We combine the DPW method and opening nodes to construct embedded surfaces of positive constant mean curvature with Delaunay ends in euclidean space, with no limitation to the genus or number of ends.

微分几何 · 数学 2020-08-18 Martin Traizet