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相关论文: A local estimate for the mean curvature flow

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We establish a convergence result for the mean curvature flow starting from a totally real submanifold which is "almost minimal" in a precise, quantitative sense. This extends, and makes effective, a result of H. Li for the Lagrangian mean…

微分几何 · 数学 2024-05-21 Tristan C. Collins , Adam Jacob , Yu-Shen Lin

We study the mean curvature flow of hypersurfaces in $\R^{n+1}$, with initial surfaces sufficiently close to the standard $n$-dimensional sphere. The closeness is in the Sobolev norm with the index greater than $\frac{n}{2}+1$ and therefore…

微分几何 · 数学 2012-04-10 Israel Michael Sigal , Wenbin Kong

In this paper, we shall study the boundary case for the $J$-flow under certain geometric assumptions.

偏微分方程分析 · 数学 2023-06-21 Wei Sun

We investigate the convergence of the mean curvature flow of arbitrary codimension in Riemannian manifolds with bounded geometry. We prove that if the initial submanifold satisfies a pinching condition, then along the mean curvature flow…

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

We prove a sharp quartic curvature pinching for the mean curvature flow in $\mathbb{S}^{n+m}$, $m\ge2$, which generalises Pu's work on the convergence of submanifolds in $\mathbb{S}^{n+m}$ to a round point. Using a blow up argument, we…

微分几何 · 数学 2024-08-16 Artemis A. Vogiatzi

We investigate the integral conditions to extend the mean curvature flow in a Riemannian manifold. We prove that the mean curvature flow solution with finite total mean curvature on a finite time interval $[0,T)$ can be extended over time…

微分几何 · 数学 2009-10-13 Hong-Wei Xu , Fei Ye , En-Tao Zhao

We establish existence and uniqueness results for the modified binormal curvature flow equation that generalizes the binormal curvature flow equation for a curve in $\R^3.$ In this generalization, the velocity of the curve is still directed…

偏微分方程分析 · 数学 2014-11-26 Haidar Mohamad

An algorithm is proposed for generalized mean curvature flow of closed two-dimensional surfaces, which include inverse mean curvature flow, powers of mean and inverse mean curvature flow, etc. Error estimates are proven for semi- and full…

数值分析 · 数学 2021-03-16 Tim Binz , Balázs Kovács

In this paper, we study a mean curvature type flow with capillary boundary in a horoball in hyperbolic space. Our flow preserves the volume of the bounded domain enclosed by the hypersurface and monotonically decreases the energy…

微分几何 · 数学 2025-05-07 Jinyu Guo

We study perturbations of the Allen-Cahn equation and prove the convergence to forced mean curvature flow in the sharp interface limit. We allow for perturbations that are square-integrable with respect to the diffuse surface area measure.…

偏微分方程分析 · 数学 2009-02-12 Luca Mugnai , Matthias Röger

In this paper we consider a mean curvature flow $V=H+A$ in a high dimensional cylinder $\Omega\times \R$, where, $A$ is a constant, $\Omega$ is a bounded domain in $\R^n$, and, for a hypersurface $y=u(x,t)$ over $\Omega$, $V$ and $H$ denote…

微分几何 · 数学 2024-02-19 Zhenghuan Gao , Bendong Lou , Jinju Xu

We consider the local solution to the Calabi flow for C^\alpha initial metric. We also prove that the Calabi flow on compact Kaehler surfaces can be extended once the metrics along the flow are bounded in L^\infty sense. This can be viewed…

微分几何 · 数学 2009-04-19 Weiyong He

In this paper, we investigate the mean curvature flow of compact surfaces in $4$-dimensional space forms. We prove the convergence theorems for the mean curvature flow under certain pinching conditions involving the normal curvature, which…

微分几何 · 数学 2020-04-30 Dong Pu , Jingjing Su , Hongwei Xu

We consider a general curvature equation $F(\kappa)=G(X,\nu(X))$, where $\kappa$ is the principal curvature of the hypersurface $M$ with position vector $X$. It includes the classical prescribed curvature measures problem and area measures…

偏微分方程分析 · 数学 2023-07-27 Shanwei Ding , Guanghan Li

We study curvature pinching estimates of Ricci flow on complete 3- dimensional manifolds without bounded curvature assumption. We will derive some general curvature conditions which are preserved on any complete solution of 3-dim Ricci…

微分几何 · 数学 2014-08-22 Bing-Long Chen , Guoyi Xu , Zhuhong Zhang

In this paper we investigate the numerical approximation of a variant of the mean curvature flow. We consider the evolution of hypersurfaces with normal speed given by $H^k$, $k \ge 1$, where $H$ denotes the mean curvature. We use a level…

数值分析 · 数学 2015-03-26 Axel Kröner , Eva Kröner , Heiko Kröner

We consider a non-local Liouville equation corresponding to the prescription of the geodesic curvature on the circle. We build a family of solutions which blow up at a critical point of the harmonic extension of the prescribed curvature…

偏微分方程分析 · 数学 2021-12-10 Luca Battaglia , Maria Medina , Angela Pistoia

We study the averaged mean curvature flow, also called the volume preserving mean curvature flow, in the particular setting of axisymmetric surfaces embedded in R^3 satisfying periodic boundary conditions. We establish analytic…

偏微分方程分析 · 数学 2012-11-12 Jeremy LeCrone

The aim of this paper is to collect some facts about the blowup of Jang's equation. First, we discuss how to construct solutions that blow up at an outermost MOTS. Second, we exclude the possibility that there are extra blowup surfaces in…

广义相对论与量子宇宙学 · 物理学 2014-11-18 Jan Metzger

Sharp estimates for mean curvature flow of graphs are shown and examples are given to illustrate why these are sharp. The estimates improves earlier (non-sharp) estimates of Klaus Ecker and Gerhard Huisken.

偏微分方程分析 · 数学 2007-05-23 Tobias H. Colding , W. P. Minicozzi