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相关论文: Sharp Entropy Bounds for Self-Shrinkers in Mean Cu…

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For any asymptotically conical self-shrinker with entropy less than or equal to that of a cylinder we show that the link of the asymptotic cone must separate the unit sphere into exactly two connected components, both diffeomorphic to the…

微分几何 · 数学 2017-03-01 Jacob Bernstein , Lu Wang

Given a smooth, symmetric, homogeneous of degree one function $f=f\left(\lambda_{1},\cdots,\,\lambda_{n}\right)$ satisfying $\partial_{i}f>0$ for all $i=1,\cdots,\, n$, and an oriented, properly embedded smooth cone $\mathcal{C}^n$ in…

微分几何 · 数学 2016-11-15 Siao-Hao Guo

Let f be a smooth map between unit spheres of possibly different dimensions. We prove the global existence and convergence of the mean curvature flow of the graph of f under various conditions. A corollary is that any area-decreasing map…

微分几何 · 数学 2011-04-19 Mao-Pei Tsui , Mu-Tao Wang

In this paper we study the mean curvature flow of embedded disks with free boundary on an embedded cylinder or generalised cone of revolution, called the support hypersurface. We determine regions of the interior of the support hypersurface…

微分几何 · 数学 2016-09-16 Valentina-Mira Wheeler

We prove that the mean curvature flow of a generic closed embedded hypersurface in $\mathbb{R}^4$ or $\mathbb{R}^5$ with entropy $\leq 2$, or with entropy $\leq \lambda(\mathbb{S}^1)$ if in $\mathbb{R}^6$, encounters only generic…

微分几何 · 数学 2024-12-23 Otis Chodosh , Christos Mantoulidis , Felix Schulze

We prove the following entropy-rigidity result in finite volume: if $X$ is a negatively curved manifold with curvature $-b^2\leq K_X \leq -1$, then $Ent_{top}(X) = n-1$ if and only if $X$ is hyperbolic. In particular, if $X$ has the same…

微分几何 · 数学 2017-02-23 M. Peigne , A. Sambusetti

We present new examples of complete embedded self-similar surfaces under mean curvature by gluing a sphere and a plane. These surfaces have finite genus and are the first examples of self-shrinkers in $\mathbb R^3$ that are not rotationally…

微分几何 · 数学 2015-01-14 Xuan Hien Nguyen

We prove that in Euclidean space $R^{n+1}$ any compact immersed nonnegatively curved hypersurface $M$ with free boundary on the sphere $S^n$ is an embedded convex topological disk. In particular, when the $m^{th}$ mean curvature of $M$ is…

微分几何 · 数学 2019-04-02 Mohammad Ghomi , Changwei Xiong

We prove the Multiplicity One Conjecture for mean curvature flows of surfaces in $\mathbb{R}^3$. Specifically, we show that any blow-up limit of such mean curvature flows has multiplicity one. This has several applications. First, combining…

微分几何 · 数学 2024-11-13 Richard H Bamler , Bruce Kleiner

Let $M$ be a compact $n$-manifold of $\operatorname{Ric}_M\ge (n-1)H$ ($H$ is a constant). We are concerned with the following space form rigidity: $M$ is isometric to a space form of constant curvature $H$ under either of the following…

微分几何 · 数学 2023-08-25 Lina Chen , Xiaochun Rong , Shicheng Xu

Let $ M^n$ be a closed immersed minimal hypersurface in the unit sphere $\mathbb{S}^{n+1}$. We establish a special isoperimetric inequality of $M^n$. As an application, if the scalar curvature of $ M^n$ is constant, then we get a uniform…

微分几何 · 数学 2023-04-18 Fagui Li , Niang Chen

In this paper, we consider soliton solutions of the mean curvature flow in the unit sphere $S^{2n+1}$ moving along the integral curves of the Hopf unit vector field. While such solitons must necessarily be minimal if compact, we produce a…

微分几何 · 数学 2026-02-10 Marco Magliaro , Luciano Mari , Fernanda Roing , Andreas Savas-Halilaj

Let $(M^{n},g_{0})$ be a $n=3,4,5$ dimensional, closed Riemannian manifold of positive Yamabe invariant. For a smooth function $K>0$ on $M$ we consider a scalar curvature flow, that tends to prescribe $K$ as the scalar curvature of a metric…

微分几何 · 数学 2015-09-03 Martin Mayer

Let $M$ be an $n(\geq3)$-dimensional oriented compact submanifold with parallel mean curvature in the simply connected space form $F^{n+p}(c)$ with $c+H^2>0$, where $H$ is the mean curvature of $M$. We prove that if the Ricci curvature of…

微分几何 · 数学 2011-05-17 Hong-Wei Xu , Juan-Ru Gu

We study the mean curvature flow of smooth $m$-dimensional compact submanifolds with quadratic pinching in the Riemannian manifold $\mathbb{C}P^n$. Our main focus is on the case of high codimension, $k\geq 2$. We establish a codimension…

微分几何 · 数学 2023-11-16 Artemis A. Vogiatzi

A new monotone quantity in graphical mean curvature flows of higher codimensions is identified in this work. The submanifold deformed by the mean curvature flow is the graph of a map between Riemannian manifolds, and the quantity is…

微分几何 · 数学 2025-09-30 Chung-Jun Tsai , Mao-Pei Tsui , Mu-Tao Wang

It has been known in that round spheres are the only closed homothetic self-similar solutions to the inverse mean curvature flow and parabolic curvature flows by degree -1 homogeneous functions of principle curvatures in the Euclidean…

微分几何 · 数学 2020-04-29 Nicholas Cheng-Hoong Chin , Frederick Tsz-Ho Fong , Jingbo Wan

The entanglement entropy in a quantum field theory between two regions of space has been shown in simple cases to be proportional to the volume of the hypersurface separating the regions. We prove that this is true for a free scalar field…

高能物理 - 理论 · 物理学 2008-11-26 Micheal S. Berger , Roman V. Buniy

We consider the evolution by mean curvature flow of a closed submanifold of the complex projective space. We show that, if the submanifold has small codimension and satisfies a suitable pinching condition on the second fundamental form,…

微分几何 · 数学 2016-04-15 Giuseppe Pipoli , Carlo Sinestrari

For closed odd-dimensional manifolds with sectional curvature less or equal than -1, we define the minimal surface entropy that counts the number of surface subgroups. It attains the minimum if and only if the metric is hyperbolic.…

微分几何 · 数学 2022-09-28 Ruojing Jiang