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In this paper, we obtain a classification theorem of $2$-dimensional complete Lagrangian self-expanders with constant squared norm of the second fundamental form in $\mathbb C^{2}$.

微分几何 · 数学 2023-12-07 Zhi Li , Guoxin Wei

In this paper, we obtain a rigidity result of $2$-dimensional complete lagrangian self-shrinkers with constant squared norm $|\vec{H}|^{2}$ of the mean curvature vector in the Euclidean space $\mathbb{R}^{4}$. The same idea is also used to…

微分几何 · 数学 2024-12-03 Zhi Li , Ruixin Wang , Guoxin Wei

We prove some non-existence theorems for translating solutions to Lagrangian mean curvature flow. More precisely, we show that translating solutions with an $L^2$ bound on the mean curvature are planes and that almost-calibrated translating…

微分几何 · 数学 2007-11-28 André Neves , Gang Tian

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 $\mathbb R^4$…

微分几何 · 数学 2018-05-10 Qing-Ming Cheng , Hiroaki Hori , Guoxin Wei

In this paper, we prove interior Hessian estimates for shrinkers, expanders, translators, and rotators of the Lagrangian mean curvature flow under the assumption that the Lagrangian phase is hypercritical. We further extend our results to a…

偏微分方程分析 · 数学 2024-03-13 Arunima Bhattacharya , Jeremy Wall

We construct many self-similar and translating solitons for Lagrangian mean curvature flow, including self-expanders and translating solitons with arbitrarily small oscillation on the Lagrangian angle. Our translating solitons play the same…

微分几何 · 数学 2010-02-03 Dominic Joyce , Yng-Ing Lee , Mao-Pei Tsui

In this paper, we prove gap results for complete self-shrinkers of the $r$-mean curvature flow involving a modified second fundamental form. These results extend previous results for self-shrinkers of the mean curvature flow due to Cao-Li…

微分几何 · 数学 2024-04-02 Hilário Alencar , G. Pacelli Bessa , Gregório Silva Neto

It is our purpose to study complete self-shrinkers in Euclidean space. By introducing a generalized maximum principle for $\mathcal{L}$-operator, we give estimates on supremum and infimum of the squared norm of the second fundamental form…

微分几何 · 数学 2012-02-09 Qing-Ming Cheng , Yejuan Peng

We obtain a quantitative estimate on the generalised index of translators for the mean curvature flow with bounded norm of the second fundamental form. The estimate involves the dimension of the space of weighted square integrable…

微分几何 · 数学 2019-01-15 Debora Impera , Michele Rimoldi

Translators in the special linear group $SL(2,\mathbb{R})$ are surfaces whose mean curvature $H$ and unit normal vector $N$ satisfy $H=\langle N,X\rangle$, where $X$ is a fixed Killing vector field. In this paper we study and classify those…

微分几何 · 数学 2024-05-28 Rafael López , Marian Ioan Munteanu

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…

微分几何 · 数学 2015-11-10 Xingxiao Li , Xiufen Chang

In this paper, inspired by the work of Spruck-Xiao [27] and based partly on a result of Derdzi\'nski [11], we prove the convexity of complete 2-convex translating and expanding solitons to the mean curvature flow in $\mathbb{R}^{n+1}$. More…

微分几何 · 数学 2024-04-02 Junming Xie , Jiangtao Yu

Using certain solutions of the curve shortening flow, including self-shrinking and self-expanding curves or spirals, we construct and characterize many new examples of translating solitons for mean curvature flow in complex Euclidean plane.…

微分几何 · 数学 2012-12-04 Ildefonso Castro , Ana M. Lerma

Suppose that $\mathcal{M}$ is an almost calibrated, exact, ancient solution of Lagrangian mean curvature flow in $\mathbb{C}^n$. We show that if $\mathcal{M}$ has a blow-down given by the static union of two Lagrangian subspaces with…

微分几何 · 数学 2024-01-22 Jason D. Lotay , Felix Schulze , Gábor Székelyhidi

We prove two main results: (a) Suppose $L$ is a closed, embedded, exact special Lagrangian $m$-fold in ${\mathbb C}^m$ for $m\ge 3$ asymptotic at infinity to the union $\Pi_1\cup\Pi_2$ of two transverse special Lagrangian planes…

辛几何 · 数学 2016-04-06 Yohsuke Imagi , Dominic Joyce , Joana Oliveira dos Santos

We construct new examples of self-similar solutions and translating solitons for Lagrangian mean curvature flow by extending the method of Joyce, Lee and Tsui. Those examples include examples in which the Lagrangian angle is arbitrarily…

微分几何 · 数学 2011-09-19 Hiroshi Nakahara

By carrying out refined point-wise estimates for the mean curvature, we prove better rigidity theorems of Lagrangian and symplectic translating solitons.

微分几何 · 数学 2024-12-19 Hongbing Qiu

The Gibbons-Hawking ansatz provides a large family of circle-invariant hyperkaehler 4-manifolds, and thus Calabi-Yau 2-folds. In this setting, we prove versions of the Thomas conjecture on existence of special Lagrangian representatives of…

微分几何 · 数学 2022-04-05 Jason D. Lotay , Goncalo Oliveira

We prove that the hypotheses in the version of the Omori-Yau maximum principle that was given by Pigola-Rigoli-Setti are logically equivalent to the assumption that the manifold carries a $C^2$ proper function whose gradient and Hessian…

微分几何 · 数学 2019-02-20 Francisco Fontenele , Alexandre Paiva Barreto

We generalize the Omori-Yau almost maximum principle of the Laplace-Beltrami operator on a complete Riemannian manifold $M$ to a second-order linear semi-elliptic operator $L$ with bounded coefficients and no zeroth order term. Using this…

微分几何 · 数学 2013-06-19 Kyusik Hong , Chanyoung Sung
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