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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…

Differential Geometry · Mathematics 2024-07-03 Jacob Bernstein

In this paper, we study complete space-like $\lambda$-hypersurfaces in the Lorentzian space $\mathbb R^{n+1}_1$. As the result, we prove some rigidity theorems for these hypersurfaces including the complete space-like self-shrinkers in…

Differential Geometry · Mathematics 2015-11-11 Xingxiao Li , Xiufen Chang

It is our purpose to study complete self-shrinkers in Euclidean space. First of all, we show some examples of complete self-shrinkers without polynomial volume growth. By making use of the generalized maximum principle for…

Differential Geometry · Mathematics 2015-04-10 Qing-Ming Cheng , Shiho Ogata

For compact submanifolds in Euclidean and Spherical space forms with Ricci curvature bounded below by a function $\alpha(n,k,H,c)$ of mean curvature, we prove that the submanifold is either isometric to the Einstein Clifford torus, or a…

Differential Geometry · Mathematics 2026-01-12 Jianquan Ge , Ya Tao , Yi Zhou

In this paper, we show an optimal volume growth for self-shrinkers, and estimate a lower bound of the first eigenvalue of $\mathcal{L}$ operator on self-shrinkers, inspired by the first eigenvalue conjecture on minimal hypersurfaces in the…

Differential Geometry · Mathematics 2013-10-21 Qi Ding , Y. L. Xin

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…

Differential Geometry · Mathematics 2022-05-02 Hilário Alencar , Gregório Silva Neto , Detang Zhou

In this paper, we prove that a two-dimensional self-shrinker, homeomorphic to the sphere, immersed in the three dimensional Euclidean space is a round sphere, provided its mean curvature and the norm of its position vector have an upper…

Differential Geometry · Mathematics 2021-09-14 Hilário Alencar , Gregório Silva Neto , Detang Zhou

In this paper, we first use the method of Colding and Minicozzi [5] to show that K. Smoczyk's classification theorem [16] for complete self-shrinkers in higher codimension also holds under a weaker condition. Then as an application, we give…

Differential Geometry · Mathematics 2012-10-01 Haizhong Li , Yong Wei

Suppose $(M^n, g, f)$ is a complete shrinking gradient Ricci soliton. We give several rigidity results under some natural conditions, generalizing the results in \cite{Petersen-Wylie,Guan-Lu-Xu}. Using maximum principle, we prove that…

Differential Geometry · Mathematics 2024-11-12 Jianyu Ou , Yuanyuan Qu , Guoqiang Wu

Some analysis on the Lorentzian distance in a spacetime with controlled sectional (or Ricci) curvatures is done. In particular, we focus on the study of the restriction of such distance to a spacelike hypersurface satisfying the Omori-Yau…

Differential Geometry · Mathematics 2009-02-16 Luis J. Alias , Ana Hurtado , Vicente Palmer

In this paper, we completely classify $3$-dimensional complete self-shrinkers with constant norm $S$ of the second fundamental form and constant $f_{3}$ in Euclidean space $\mathbb R^{4}$, where $h_{ij}$ are components of the second…

Differential Geometry · Mathematics 2023-03-08 Qing-Ming Cheng , Zhi Li , Guoxin Wei

The orthogonal decomposition of the Webster curvature provides us a way to characterize some canonical metrics on a pseudo-Hermitian manifold. We derive some subelliptic differential inequalities from the Weitzenb\"ock formulas for the…

Differential Geometry · Mathematics 2014-02-28 Yuxin Dong , Hezi Lin , Yibin Ren

In this paper, maximum principles for Euclidean and hyperbolic discrete conformal structures on polyhedral surfaces are established. These maximum principles unify and generalize the maximum principles for vertex scalings and different…

Metric Geometry · Mathematics 2025-06-19 Yanwen Luo , Xu Xu , Chao Zheng

We prove that every entire self-shrinking solution on $\mathbb{C}^n$ to the K\"{a}hler-Ricci flow with strictly real convex potential must be quadratic. The very same argument also gives a pointwise proof for the rigidity of entire…

Differential Geometry · Mathematics 2016-10-31 Wenlong Wang

In this paper, we classify $3$-dimensional complete self-shrinkers in Euclidean space $\mathbb R^{4}$ with constant squared norm of the second fundamental form $S$ and constant $f_{4}$.

Differential Geometry · Mathematics 2020-03-26 Qing-Ming Cheng , Zhi Li , Guoxin Wei

In this article, we study hypersurfaces $\Sigma\subset \mathbb{R}^{n+1}$ with constant weighted mean curvature. Recently, Wei-Peng proved a rigidity theorem for CWMC hypersurfaces that generalizes Le-Sesum classification theorem for…

Differential Geometry · Mathematics 2020-06-29 Saul Ancari , Igor Miranda

The aim of this manuscript is to obtain rigidity and non-existence results for parabolic spacelike submanifolds with causal mean curvature vector field in orthogonally splitted spacetimes, and in particular, in globally hyperbolic…

Differential Geometry · Mathematics 2024-02-08 Alma L. Albujer , Jónatan Herrera , Rafael M. Rubio

We prove that all entire smooth strictly convex self-shrinking solutions on $\mathbb{R}^n$ to the Hessian quotient flows must be quadratic. This generalizes the rigidity theorem for entire self-shrinking solutions to the Lagrangian mean…

Differential Geometry · Mathematics 2017-07-25 Wenlong Wang

We study integral and pointwise bounds on the second fundamental form of properly immersed self-shrinkers with boundedHA. As applications, we discuss gap and compactness results for self-shrinkers.

Differential Geometry · Mathematics 2021-09-03 Zhen Wang

We prove a smooth compactness theorem for the space of embedded self-shrinkers in $\RR^3$. Since self-shrinkers model singularities in mean curvature flow, this theorem can be thought of as a compactness result for the space of all…

Differential Geometry · Mathematics 2009-07-16 Tobias H. Colding , William P. Minicozzi