中文
相关论文

相关论文: Entropy Bounds for Self-shrinkers with Symmetries

200 篇论文

In this paper, we present a sufficient condition for finite Morse index of complete properly self-shrinkers. We prove that a complete properly embedded self-shrinker in $\mathbb{R}^{n+1}$ with finite asymptotically conical ends or…

微分几何 · 数学 2021-06-24 Xu-Yong Jiang , He-Jun Sun , Peibiao Zhao

We present an $\epsilon$-bounded compression method for unit-norm embeddings that achieves 1.5$\times$ compression, 25% better than the best prior lossless method. The method exploits that spherical coordinates of high-dimensional unit…

机器学习 · 计算机科学 2026-03-27 Han Xiao

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

In the paper we establish an optimal logarithmic Sobolev inequality for complete, non-compact, properly embedded self-shrinkers in the Euclidean space, which generalizes a recent result of Brendle \cite{Brendle22} for closed self-shrinkers.…

偏微分方程分析 · 数学 2024-10-18 Guofang Wang , Chao Xia , Xiqiang Zhang

We construct an immersed and non-embedded $S^2$ self-shrinker.

微分几何 · 数学 2013-04-02 Gregory Drugan

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

The coefficient of the logarithmic term in the entropy on even spheres is re-computed by the local technique of integrating the finite temperature energy density up to the horizon on static d--dimensional de Sitter space and thence finding…

高能物理 - 理论 · 物理学 2010-09-29 J. S. Dowker

The analysis of manifold valued data using embedding based methods is linked to the problem of finding suitable embeddings. In this paper we are interested in embeddings of quotient manifolds $\mathrm{SO}(3)/\mathcal{S}$ of the rotation…

数学物理 · 物理学 2020-12-02 Ralf Hielscher , Laura Lippert

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

Entropy bounds in black hole physics, based on a wide variety of different approaches, have had a long and distinguished history. Recently the current authors have turned attention to uncollapsed systems and obtained a robust entropy bound…

广义相对论与量子宇宙学 · 物理学 2011-03-18 Gabriel Abreu , Matt Visser

In this short paper we extend the classical Hoffman-Meeks Halfspace Theorem to self-shrinkers, that is: "Let $P $ be a hyperplane passing through the origin. The only properly immersed self-shrinker $\Sigma$ contained in one of the closed…

微分几何 · 数学 2016-06-22 Marcos P. Cavalcante , Jose M. Espinar

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

微分几何 · 数学 2017-08-25 Siao-Hao Guo

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…

微分几何 · 数学 2021-09-14 Hilário Alencar , Gregório Silva Neto , Detang Zhou

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

We study the compact embedding between smoothness Morrey spaces on bounded domains and characterise its entropy numbers. Here we discover a new phenomenon when the difference of smoothness parameters in the source and target spaces is…

泛函分析 · 数学 2020-04-22 Dorothee D. Haroske , Leszek Skrzypczak

We show that two properly embedded self-shrinkers in Euclidean space that are sufficiently separated at infinity must intersect at a finite point. The proof is based on a localized version of the Reilly formula applied to a suitable…

微分几何 · 数学 2020-07-29 Debora Impera , Stefano Pigola , Michele Rimoldi

In this paper we prove some spectral properties of the drifted Laplacian of self-shrinkers properly immersed in gradient shrinking Ricci solitons. Then we use these results to prove some geometric properties of self-shrinkers. For example,…

微分几何 · 数学 2016-09-13 Matheus Vieira , Detang Zhou

In this paper we develop the following general approach. We study asymptotic behavior of the entropy numbers not for an individual smoothness class, how it is usually done, but for the collection of classes, which are defined by integral…

数值分析 · 数学 2025-07-15 V. Temlyakov

In this article we study smooth asymptotically conical self shrinkers in $\mathbb{R}^4$ with Colding-Minicozzi entropy bounded above by $\Lambda_{1}$.

微分几何 · 数学 2023-12-13 Alexander Mramor

We prove that a closed immersed plane curve with total curvature $2\pi m$ has entropy at least $m$ times the entropy of the embedded circle, as long as it generates a type I singularity under the curve shortening flow (CSF). We construct…

微分几何 · 数学 2020-12-29 Julius Baldauf , Ao Sun