中文
相关论文

相关论文: Interior Gradient Estimates for Anisotropic Mean C…

200 篇论文

We provide a unified description of Heinz-type mean curvature estimates under an assumption on the gradient bound for space-like graphs and time-like graphs in the Lorentz-Minkowski space. As a corollary, we give a unified vanishing theorem…

微分几何 · 数学 2023-08-31 Atsufumi Honda , Yu Kawakami , Miyuki Koiso , Syunsuke Tori

We investigate the problem of finding smooth hypersurfaces of constant mean curvature in hyperbolic space, which can be represented as radial graphs over a subdomain of the upper hemisphere. Our approach is variational and our main results…

偏微分方程分析 · 数学 2007-09-24 D. De Silva , J. Spruck

In the paper, we study the Gauss map of a completely immersed anisotropic minimal surface with respect to convex parametric integrand in $\mathbb{R}^3$. By a local analysis, we prove the discreteness of the critical set of the Gauss map of…

微分几何 · 数学 2024-12-31 Toshimi Inoue

We consider a mean curvature flow in a cone, that is, a hypersurface in a cone which moves toward the opening with normal velocity equaling to the mean curvature, and the contact angle between the hypersurface and the cone boundary being…

微分几何 · 数学 2019-07-29 Bendong Lou

We study the volume preserving mean curvature flow of a surface immersed in an asymptotically flat $3$-manifold modeling an isolated gravitating system in General Relativity. We show that, if the ambient manifold has positive ADM mass and…

微分几何 · 数学 2025-01-23 Carlo Sinestrari , Jacopo Tenan

The asymptotic Plateau problem asks for the existence of smooth complete hypersurfaces of constant mean curvature with prescribed asymptotic boundary at infinity in the hyperbolic space $\mathbb{H}^{n+1}$. The modified mean curvature flow…

微分几何 · 数学 2021-03-12 Patrick Allmann , Longzhi Lin , Jingyong Zhu

We consider a class of anisotropic curvature flows called a crystalline curvature flow. We present a survey on this class of flows with special emphasis on the well-posedness of its initial value problem.

偏微分方程分析 · 数学 2021-12-13 Yoshikazu Giga , Norbert Požár

This preliminary report studies immersed surfaces of constant mean curvature in $H^3$ through their {\it adjusted Gauss maps} (as harmonic maps in $S^2$) and their {\it adjusted frames} in SU(2). Lawson's correspondence between Euclidean…

微分几何 · 数学 2007-05-23 Magdalena Toda

In this paper, we obtain the necessary equations in a conformal parameter induced by the first or second fundamental forms for a surface that is isometrically immersed in the warped product $\mathbb{R} \times_{f} \mathbb{M}^{2}(\kappa)$…

微分几何 · 数学 2025-03-26 Jairo Delgado , Haimer A. Trejos , Carlos Peñafiel

We study hypersurfaces with fractional mean curvature in N-dimensional Euclidean space. These hypersurfaces are critical points of the fractional perimeter under a volume constraint. We use local inversion arguments to prove existence of…

偏微分方程分析 · 数学 2018-04-06 Ignace Aristide Minlend , Alassane Niang , El Hadji Abdoulaye Thiam

In this paper, we derive global bounds for the H\"older norm of the gradient of solutions of graphic mean curvature flow with boundary of arbitrary codimension.

微分几何 · 数学 2023-12-21 Qi Ding , J. Jost , Y. L. Xin

We establish convergence results for a spatial semidiscretization of Mean Curvature Flow (MCF) for surfaces with fixed boundaries. Our analysis is based on Huisken's evolution equations for the mean curvature and the normal vector, enabling…

数值分析 · 数学 2025-04-29 Bárbara Solange Ivaniszyn , Pedro Morin , M. Sebastián Pauletti

Utilizing a weight matrix we study surfaces of prescribed weighted mean curvature which yield a natural generalisation to critical points of anisotropic surface energies. We first derive a differential equation for the normal of immersions…

微分几何 · 数学 2007-11-16 Matthias Bergner , Jens Dittrich

We consider the evolution of hypersurfaces on the unit sphere $\mathbb{S}^{n+1}$ by their mean curvature. We prove a differential Harnack inequality for any weakly convex solution to the mean curvature flow. As an application, by applying…

微分几何 · 数学 2019-06-10 Paul Bryan , Mohammad N. Ivaki

The study of the mean curvature flow from the perspective of partial differential equations began with Gerhard Huisken's pioneering work in 1984. Since that time, the mean curvature flow of hypersurfaces has been a lively area of study.…

微分几何 · 数学 2011-04-25 Charles Baker

In this paper, the isoperimetric inequality in centro-affine plane geometry is obtained. We also investigate the long-term behavior of an invariant plane curve flow, whose evolution process can be expressed as a second-order nonlinear…

微分几何 · 数学 2023-02-28 Xinjie Jiang , Yun Yang , Yanhua Yu

We consider the evolution of a compact segment of an analytic curve on the unit tangent bundle of a finite volume hyperbolic $n$-manifold under the geodesic flow. Suppose that the curve is not contained in a stable leaf of the flow. It is…

微分几何 · 数学 2019-12-19 Nimish A. Shah

This article deals with flow of plane curves driven by the curvature and external force. We make use of such a geometric flow for the purpose of image segmentation. A parametric model for evolving curves with uniform and curvature adjusted…

数值分析 · 数学 2007-12-17 M. Benes , M. Kimura , P. Paus , D. Sevcovic , T. Tsujikawa , S. Yazaki

We consider the numerical approximation of axisymmetric mean curvature flow with the help of linear finite elements. In the case of a closed genus-1 surface, we derive optimal error bounds with respect to the $L^2$-- and $H^1$--norms for a…

数值分析 · 数学 2021-07-20 John W. Barrett , Klaus Deckelnick , Robert Nürnberg

We study a notion of relative entropy for certain hypersurfaces in hyperbolic space. We relate this quantity to the renormalized area introduced by Graham-Witten[RW99]. We also obtain a monotonicity formula for relative entropy applied to…

微分几何 · 数学 2022-06-28 Junfu Yao