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Under mean curvature flow, a closed, embedded hypersurface $M(t)$ becomes singular in finite time. For certain classes of mean-convex mean curvature flows, we show the continuity of the first singular time $T$ and the limit set "$M(T)$",…

微分几何 · 数学 2017-03-09 Kevin Sonnanburg

A stability criterion is derived for self-similar solutions with perfect fluids which obey the equation of state $P=k\rho$ in general relativity. A wide class of self-similar solutions turn out to be unstable against the so-called kink…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Tomohiro Harada

In this paper, we introduce a definition of $\lambda$-hypersurfaces of weighted volume-preserving mean curvature flow in Euclidean space. We prove that $\lambda$-hypersurfaces are critical points of the weighted area functional for the…

微分几何 · 数学 2020-07-01 Qing-Ming Cheng , Guoxin Wei

In this paper we address anisotropic and inhomogeneous mean curvature flows with forcing and mobility, and show that the minimizing movements scheme converges to level set/viscosity solutions and to distributional solutions \textit{\`a la}…

偏微分方程分析 · 数学 2023-10-10 Antonin Chambolle , Daniele De Gennaro , Massimiliano Morini

In this paper, we shall show that a polarized algebraic manifold is K-stable if the polarization class admits a Kaehler metric of constant scalar curvature. This generalizes the results of Chen-Tian, Donaldson and Stoppa. (Parts of the…

微分几何 · 数学 2008-12-30 Toshiki Mabuchi

A freely falling stream of weakly cohesive granular particles is modeled and analysed with help of event driven simulations and continuum hydrodynamics. The former show a breakup of the stream into droplets, whose size is measured as a…

软凝聚态物质 · 物理学 2015-06-04 Stephan Ulrich , Annette Zippelius

Shrinkers are special solutions of mean curvature flow (MCF) that evolve by rescaling and model the singularities. While there are infinitely many in each dimension, [CM1] showed that the only generic are round cylinders $\SS^k\times…

微分几何 · 数学 2015-02-13 Tobias Holck Colding , Tom Ilmanen , William P. Minicozzi

In this work, a result of exponential stability is obtained for solutions of a compressible flow-structure partial differential equation (PDE) model which has recently appeared in the literature. In particular, a compressible flow PDE and…

偏微分方程分析 · 数学 2017-12-11 George Avalos , Pelin G. Geredeli

We prove a parabolically scale-invariant variation of the planarity estimate in \cite{Na22} for higher codimension mean curvature flow, borrowing ideas from work of Brendle--Huisken--Sinestrari \cite{BHS}. Additionally, we prove convexity…

微分几何 · 数学 2025-04-28 Tang-Kai Lee , Keaton Naff , Jingze Zhu

In this paper, we consider a family of closed hypersurfaces which shrink self-similarly with speed of quotient curvatures. We show that the only such hypersurfaces are shrinking spheres.

微分几何 · 数学 2019-08-14 Li Chen , Shanze Gao

In this paper, we prove a pinching theorem for $n-$dimensional closed self-shrinkers of the mean curvature flow. If the squared norm of the second fundamental form of a closed self-shrinker of arbitrary codimension satisfies: $ |…

微分几何 · 数学 2025-03-18 Yuhang Zhao

Recently, Sun-Zhang have developed an algebraic theory for K\"ahler-Ricci shrinkers showing that they admit the structure of a polarized Fano fibration $(\pi: X \to Y, \xi)$. In particular, they conjecture that existence of a K\"ahler-Ricci…

微分几何 · 数学 2025-12-05 Charles Cifarelli , Carlos Esparza

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

In this paper, we construct a family of integral varifolds, which is a global weak solution to the volume preserving mean curvature flow in the sense of $L^2$-flow. This flow is also a distributional BV-solution for a short time, when the…

偏微分方程分析 · 数学 2023-05-17 Keisuke Takasao

A large class of multidimensional nonlinear Schroedinger equations admit localized nonradial standing wave solutions that carry nonzero intrinsic angular momentum. Here we provide evidence that certain of these spinning excitations are…

斑图形成与孤子 · 物理学 2007-05-23 Robert L. Pego , Henry A. Warchall

Given a positive function $F$ on $S^n$ which satisfies a convexity condition, we define the $r$-th anisotropic mean curvature function $H^F_r$ for hypersurfaces in $\mathbb{R}^{n+1}$ which is a generalization of the usual $r$-th mean…

微分几何 · 数学 2008-01-24 Yijun He , Haizhong Li

In this article we study the breathers of the mean curvature flow in the Euclidean space. A breather is a solution to the mean curvature flow which repeats itself up to isometry and scaling once in a while. We prove several no breather…

微分几何 · 数学 2021-08-16 Liang Cheng , Yongjia Zhang

We introduce a regularization method for mean curvature flow of a submanifold of arbitrary codimension in the Euclidean space, through higher order equations. We prove that the regularized problems converge to the mean curvature flow for…

偏微分方程分析 · 数学 2007-05-23 Giovanni Bellettini , Carlo Mantegazza , Matteo Novaga

In this contribution we introduce a novel weak solution concept for two-phase volume-preserving mean curvature flow, having both properties of unconditional global-in-time existence and weak-strong uniqueness. These solutions extend the…

偏微分方程分析 · 数学 2026-02-25 Andrea Poiatti

In this paper, we first investigate a new locally constrained mean curvature flow (1.5) and prove that if the initial hypersurface is of smoothly compact starshaped, then the solution of the flow (1.5) exists for all time and converges to a…

微分几何 · 数学 2021-11-02 J. Cui , P. Zhao