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We study geometric properties of complete non-compact bounded self-shrinkers and obtain natural restrictions that force these hypersurfaces to be compact. Furthermore, we observe that, to a certain extent, complete self-shrinkers intersect…

Differential Geometry · Mathematics 2018-11-14 Stefano Pigola , Michele Rimoldi

We show that each end of a noncompact self-shrinker in $\mathbb{R}^3$ of finite topology is smoothly asymptotic to either a regular cone or a self-shrinking round cylinder.

Differential Geometry · Mathematics 2016-10-18 Lu Wang

In this note, we give a new and simple proof of a result in {\cite{DX1}} which states that any smooth complete self-shrinker in $\mathbb{R}^3$ with second fundamental form of constant length must be a generalized cylinder $\mathbb{S}^k…

Differential Geometry · Mathematics 2018-03-07 Qiang Guang

For hypersurfaces of dimension greater than one, Huisken showed that compact self-shrinkers of the mean curvature flow with positive scalar mean curvature are spheres. We will prove the following extension: A compact self-similar solution…

Differential Geometry · Mathematics 2007-05-23 Knut Smoczyk

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

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…

Differential Geometry · Mathematics 2015-10-27 Po-Yao Chang , Joel Spruck

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.…

Analysis of PDEs · Mathematics 2024-10-18 Guofang Wang , Chao Xia , Xiqiang Zhang

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,…

Differential Geometry · Mathematics 2016-09-13 Matheus Vieira , Detang Zhou

By using certain idea developed in minimal submanifold theory we study rigidity problem for self-shrinkers in the present paper. We prove rigidity results for squared norm of the second fundamental form of self-shrinkers, either under…

Differential Geometry · Mathematics 2011-05-26 Qi Ding , Y. L. Xin

In this paper, we study complete self-shrinkers in Euclidean space and prove that an $n$-dimensional complete self-shrinker with polynomial volume growth in Euclidean space $\mathbb{R}^{n+1}$ is isometric to either $\mathbb{R}^{n}$,…

Differential Geometry · Mathematics 2012-12-27 Qing-Ming Cheng , Guoxin Wei

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…

Differential Geometry · Mathematics 2021-06-24 Xu-Yong Jiang , He-Jun Sun , Peibiao Zhao

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

We develop a unified approach for construction of symplectic forms for 1D integrable equations with the periodic and rapidly decaying initial data. As an example we consider the cubic nonlinear Schr\"{o}dinger equation.

Exactly Solvable and Integrable Systems · Physics 2015-06-26 K. L. Vaninsky

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

Microscopic self-propelled swimmers capable of autonomous navigation through complex environments provide appealing opportunities for localization, pick-up and delivery of micro-and nanoscopic objects. Inspired by motile cells and bacteria,…

Soft Condensed Matter · Physics 2012-05-07 W. Yang , V. R. Misko , K. Nelissen , M. Kong , F. M. Peeters

The purpose of this paper is to study complete self-shrinkers of mean curvature flow in Euclidean spaces. In the paper, we give a complete classification for 2-dimensional complete Lagrangian self-shrinkers in Euclidean space $\mathbb R^4$…

Differential Geometry · Mathematics 2018-05-10 Qing-Ming Cheng , Hiroaki Hori , Guoxin Wei

In this paper, we discuss the Lagrangian angle and the K\"ahler angle of immersed surfaces in $\mathbb C^2$. Firstly, we provide an extension of Lagrangian angle, Maslov form and Maslov class to more general surfaces in $\mathbb C^2$ than…

Differential Geometry · Mathematics 2015-11-10 Xingxiao Li , Xiao Li

In this paper, we study complete self-shrinkers in Euclidean space and prove that an $n$-dimensional complete self-shrinker in Euclidean space $\mathbb{R}^{n+1}$ is isometric to either $\mathbb{R}^{n}$, $S^{n}(\sqrt{n})$, or $S^k…

Differential Geometry · Mathematics 2021-04-30 Qing-Ming Cheng , Guoxin Wei , Wataru Yano

We obtain a Calabi-Yau type lower volume growth estimates for complete noncompact self-shrinkers of the mean curvature flow, more precisely, every complete noncompact properly immersed self-shrinker has at least linear volume growth.

Differential Geometry · Mathematics 2012-01-24 Haizhong Li , Yong Wei

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…

Differential Geometry · Mathematics 2020-07-29 Debora Impera , Stefano Pigola , Michele Rimoldi