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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

In this paper, we study the solution to the 1-dimensional $\lambda$-self shrinkers and show that for certain $\lambda<0$, there are some closed, embedded solutions other than the circle.

微分几何 · 数学 2015-11-11 Jui-En Chang

In [5], Colding-Ilmanen-Minicozzi-White showed that within the class of closed smooth self-shrinkers in $\mathbb{R}^{n+1}$, the entropy is uniquely minimized at the round sphere. They conjectured that, for $2\leq n\leq 6$, the round sphere…

微分几何 · 数学 2016-06-29 Jacob Bernstein , Lu Wang

Let $C\subset\mathbb{R}^{n+1}$ be a regular cone with vertex at the origin. In this paper, we show the uniqueness for smooth properly embedded self-shrinking ends in $\mathbb{R}^{n+1}$ that are asymptotic to $C$. As an application, we prove…

微分几何 · 数学 2011-10-04 Lu Wang

In this work, we study the space of complete embedded rotationally symmetric self-shrinking hypersurfaces in $\mathbb{R}^{n+1}$. First, using comparison geometry in the context of metric geometry, we derive explicit upper bounds for the…

微分几何 · 数学 2026-01-26 John Man Shun Ma , Ali Muhammad , Niels Martin Møller

This paper studies rigidity for immersed self-shrinkers of the mean curvature flow of surfaces in the three-dimensional Euclidean space $\mathbb{R}^3.$ We prove that an immersed self-shrinker with finite $L$-index must be proper and of…

微分几何 · 数学 2022-05-02 Hilário Alencar , Gregório Silva Neto , Detang Zhou

The entropy functional introduced by Colding and Minicozzi plays a fundamental role in the analysis of mean curvature flow. However, unlike the hypersurface case, relatively little about the entropy is known in the higher-codimension case.…

微分几何 · 数学 2023-10-16 Tang-Kai Lee

We show the (normalized) Li-Yau conformal volume of a self-shrinker of mean curvature flow in Euclidean space bounds its Colding-Minicozzi entropy from below. This bound is independent of codimension and sharp on planes. As an application…

微分几何 · 数学 2024-07-03 Jacob Bernstein

A closed surface evolving under mean curvature flow becomes singular in finite time. Near the singularity, the surface resembles a self-shrinker, a surface that shrinks by dilations under mean curvature flow. If the singularity is modeled…

微分几何 · 数学 2021-07-20 Yakov Berchenko-Kogan

In this work we derive explicit entropy bounds for two classes of closed self-shrinkers: the class of embedded closed self-shrinkers recently constructed in arXiv:2207.04851 using isoparametric foliations of spheres, and the class of…

微分几何 · 数学 2023-06-22 John Man Shun Ma , Ali Muhammad

In this paper, we generalize Colding and Minicozzi's work \cite{CM} on the stability of self-shrinkers in the hypersurface case to higher co-dimensional cases. The first and second variation formulae of the $F$-functional are derived and an…

微分几何 · 数学 2012-04-30 Yng-Ing Lee , Yang-Kai Lue

For each positive integer $g$ we use variational methods to construct a genus $g$ self-shrinker $\Sigma_g$ in $\mathbb{R}^3$ with entropy less than $2$ and prismatic symmetry group $\mathbb{D}_{g+1}\times\mathbb{Z}_2$. For $g$ sufficiently…

微分几何 · 数学 2024-11-22 Daniel Ketover

We show that if a shrinking soliton is asymptotic to a cone along an end then the isometry group of the cross-section of the cone embeds in the isometry group of the end of the shrinker. We also provide sufficient conditions for the…

微分几何 · 数学 2019-01-03 Brett Kotschwar , Lu Wang

In this note, we numerically estimate Colding-Minicozzi entropies of some self-shrinkers and get that Colding-Minicozzi entropies of $n$-dimensional Angenent torus are decreasing about dimension $n$ ($2\leq n\leq 5*10^7$), which partially…

微分几何 · 数学 2023-11-22 Qilun Luo , Guoxin Wei , Fu-An Zhang

We establish a uniform entropy bound for simply connected Ricci shrinkers with a finite second homotopy group and a uniform curvature bound. Additionally, we extend the non-collapsing result to a broader class of smooth metric measure…

微分几何 · 数学 2024-12-19 Conghan Dong , Yu Li

We investigate Mean Curvature Flow self-shrinking hypersurfaces with polynomial growth. It is known that such self shrinkers are unstable. We focus mostly on self-shrinkers of the form $\mathbb S^k\times\R^{n-k}\subset \R^{n+1}$. We use a…

微分几何 · 数学 2013-03-05 Caleb Hussey

We show compactness in the locally smooth topology for certain natural families of asymptotically conical self-expanding solutions of mean curvature flow. Specifically, we show such compactness for the set of all two-dimensional…

微分几何 · 数学 2018-07-24 Jacob Bernstein , Lu Wang

In this article we prove an unknottedness result for self shrinkers in $\mathbb{R}^3$ with multiple asymptotically conical ends which bound a handlebody in a natural sense, using the mean curvature flow. As a corollary of this and previous…

微分几何 · 数学 2023-06-30 Alexander Mramor

In this paper we construct an end of a self-similar shrinking solution of the mean curvature flow asymptotic to an isoparametric cone C and lying outside of C. We call a cone C in $R^{n+1}$ an isoparametric cone if C is the cone over a…

微分几何 · 数学 2015-10-27 Po-Yao Chang , Joel Spruck

Let $C$ be an $m$-dimensional cone immersed in $\mathbb{R}^{n+m}$. In this paper, we show that if $F:M^m \rightarrow \mathbb{R}^{n+m}$ is a properly immersed mean curvature flow self-shrinker which is smoothly asymptotic to $C$, then it is…

微分几何 · 数学 2023-06-21 Ilyas Khan
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