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We study almost-calibrated, $O(n)$-equivariant Lagrangian mean curvature flow in $\mathbb{C}^n$, and prove structural theorems about the Type I and Type II blowups of finite-time singularities. In particular, we prove that any Type I blowup…

Differential Geometry · Mathematics 2020-12-09 Albert Wood

Generalizing a theorem of Huang, Cheng and Wan classified the complete hypersurfaces of $\mathbb R^4$ with non-zero constant mean curvature and constant scalar curvature. In our work, we obtain results of this nature in higher dimensions.…

Differential Geometry · Mathematics 2016-06-03 Roberto Alonso Núñez

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…

Differential Geometry · Mathematics 2016-11-15 Siao-Hao Guo

This article studies the mean curvature flow of Lagrangian submanifolds. In particular, we prove the following global existence and convergence theorem: if the potential function of a Lagrangian graph in T^{2n} is convex, then the flow…

Differential Geometry · Mathematics 2016-09-07 Knut Smoczyk , Mu-Tao Wang

In this paper, we study the generalized Lagrangian mean curvature flow in almost Einstein manifold proposed by T. Behrndt. We show that the singularity of this flow is characterized by the second fundamental form. We also show that the…

Differential Geometry · Mathematics 2013-07-31 Jun Sun , Liuqing Yang

In this paper we consider minimal Lagrangian submanifolds in $n$-dimensional complex space forms. More precisely, we study such submanifolds which, endowed with the induced metrics, write as a Riemannian product of two Riemannian manifolds,…

Differential Geometry · Mathematics 2019-12-12 Xiuxiu Cheng , Zejun Hu , Marilena Moruz , Luc Vrancken

In this paper we prove that for all solutions of the 2d Euler equations with initial vorticity with finite Sobolev smoothness then an initial data dependent norm of the associated Lagrangian flow blows up in infinite time at least like…

Analysis of PDEs · Mathematics 2024-01-15 Ayman Rimah Said

We investigate the gradient flow of the $L^2$ norm of the Riemannian curvature on surfaces. We show long time existence with arbitrary initial data, and exponential convergence of the volume normalized flow to a constant scalar curvature…

Differential Geometry · Mathematics 2010-08-26 Jeffrey Streets

In this paper we show that a complete and non-compact surface immersed in the Euclidean space with quadratic extrinsic area growth has finite total curvature provided the surface has tamed second fundamental form and admits total curvature.…

Differential Geometry · Mathematics 2015-02-17 Cristiane M. Brandao , Vicent Gimeno

We consider 2-dimensional orientable self-shrinkers $\Sigma$ for the Mean Curvature Flow of polynomial volume growth immersed in $\mathbb R^n$. We look at closed one forms minimizing the norm $\int_\Sigma \eterm |\omega|^2$ in their…

Differential Geometry · Mathematics 2012-04-02 Matthew McGonagle

We study singularities of Lagrangian mean curvature flow in $\C^n$ when the initial condition is a zero-Maslov class Lagrangian. We start by showing that, in this setting, singularities are unavoidable. More precisely, we construct…

Differential Geometry · Mathematics 2009-11-11 Andre' Neves

It is our purpose to study complete space-like self-expanders in the Minkovski space. By use of maximum principle of Omori-Yau type, we can obtain the rigidity theorems on $n$-dimensional complete space-like self-expanders in the Minkovski…

Differential Geometry · Mathematics 2024-01-02 Zhi Li , Guoxin Wei

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

In this paper, we study self-expanding solutions to a large class of parabolic inverse curvature flows by homogeneous symmetric functions of principal curvatures in Euclidean spaces. These flows include the inverse mean curvature flow and…

Differential Geometry · Mathematics 2018-06-19 Tsz-Kiu Aaron Chow , Ka-Wing Chow , Frederick Tsz-Ho Fong

In this paper, we first introduce the concept of $\xi $-submanifold which is a natural generalization of self-shrinkers for the mean curvature flow and also an extension of $\lambda$-hypersurfaces to the higher codimension. Then, as the…

Differential Geometry · Mathematics 2015-11-10 Xingxiao Li , Xiufen Chang

In this paper, we study self-expanders for mean curvature flows. First we show the discreteness of the spectrum of the drifted Laplacian on them. Next we give a universal lower bound of the bottom of the spectrum of the drifted Laplacian…

Differential Geometry · Mathematics 2017-09-14 Xu Cheng , Detang Zhou

In this paper, we will prove some rigidity theorems for blow up limits to Type II singularities of Lagrangian mean curvature flow with zero Maslov class or almost calibrated Lagrangian mean curvature flows, especially for Lagrangian…

Differential Geometry · Mathematics 2025-04-25 Xiang Li , Yong Luo , Jun Sun

In this paper, we consider the mean curvature flow of convex hypersurfaces in Euclidean spaces with a general forcing term. We show that the flow may shrink to a point in finite time if the forcing term is small, or exist for all times and…

Differential Geometry · Mathematics 2008-06-17 Guanghan Li , Isabel Salavessa

We introduce Lagrangian mean curvature flow with boundary in Calabi--Yau manifolds by defining a natural mixed Dirichlet-Neumann boundary condition, and prove that under this flow, the Lagrangian condition is preserved. We also study in…

Differential Geometry · Mathematics 2022-11-11 Christopher G. Evans , Ben Lambert , Albert Wood

In this paper, we derive a mean curvature estimate for eternal solutions (including translating solutions) of almost-calibrated Lagrangian mean curvature flow in complex Euclidean space. As a consequence, we show a non-existence result for…

Differential Geometry · Mathematics 2018-10-09 Keita Kunikawa
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