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In this paper, we obtain several classification results of $2$-dimensional complete Lagrangian translators and lagrangian self-expanders with constant squared norm $|\vec{H}|^{2}$ of the mean curvature vector in $\mathbb{C}^{2}$ by using a…

微分几何 · 数学 2024-05-24 Zhi Li , Guoxin Wei

In this paper, we consider the mean curvature flow of entire Lagrangian graphs with initial data in the pseudo-Euclidean space, which is related to the special Lagrangian parabolic equation. We show that the parabolic equation \eqref{11}…

微分几何 · 数学 2024-10-24 Shanshan Li , Jiaru Lv , Rongli Huang

We construct examples of shrinkers and expanders for Lagrangian mean curvature flows. These examples are Hamiltonian stationary and asymptotic to the union of two Hamiltonian stationary cones found by Schoen and Wolfson. The Schoen-Wolfson…

微分几何 · 数学 2007-07-03 Yng-Ing Lee , Mu-Tao Wang

In this paper we generalize examples of Hamiltonian stationary Lagrangian submanifolds constructed by Lee and Wang in $\mathbb{C}^m$ to toric almost Calabi-Yau manifolds. We construct examples of weighted Hamiltonian stationary Lagrangian…

微分几何 · 数学 2013-12-02 Hikaru Yamamoto

We derive local $C^{2}$ estimates for complete non-compact translating solitons of the Gauss curvature flow in $\mathbb{R}^3$ which are graphs over a convex domain $\Omega$. This is closely is related to deriving local $C^{1,1}$ estimates…

微分几何 · 数学 2018-10-08 Kyeongsu Choi , Panagiota Daskalopoulos , Ki-Ahm Lee

This paper focuses on the translating solitons of fully nonlinear extrinsic curvature geometric flows in $\mathbb{R}^{n+1}$. We present a generalization of the Spruck-Xiao's and Spruck-Sun's convexity results for $1$-homogeneous…

微分几何 · 数学 2024-11-27 José Torres Santaella

We give the first examples of closed Laplacian solitons which are shrinking, and in particular produce closed Laplacian flow solutions with a finite-time singularity. Extremally Ricci pinched G2-structures (introduced by Bryant) which are…

微分几何 · 数学 2017-03-07 Jorge Lauret

We consider the mean curvature flow of entire Lagrangian graphs with Lipschitz continuous initial data. Assuming only a certain bound on the Lipschitz norm of an initial entire Lagrangian graph in $\R^{2n}$, we show that the parabolic…

微分几何 · 数学 2009-02-20 Albert Chau , Jingyi Chen , Weiyong He

In this paper, we construct solutions of Lagrangian mean curvature flow which exist and are embedded for all time, but form an infinite-time singularity and converge to an immersed special Lagrangian as $t\to\infty$. In particular, the flow…

微分几何 · 数学 2024-05-02 Wei-Bo Su , Chung-Jun Tsai , Albert Wood

We prove that any translating soliton for the mean curvature flow which is noncollapsed and uniformly 2-convex must be the rotationally symmetric bowl soliton. In particular, this proves a conjecture of White and Wang, in the 2-convex case…

微分几何 · 数学 2015-08-12 Robert Haslhofer

We give an application of a Huisken monotonicity-type formula for the mean curvature flow in a compact smooth manifold with a Riemannian metric that evolves by a shrinking self-similar solution of the extended Ricci flow. Our investigation…

微分几何 · 数学 2025-08-25 José N. V. Gomes , Matheus Hudson , Hikaru Yamamoto

Ancient solutions of Lagrangian mean curvature flow in C^n naturally arise as Type II blow-ups. In this extended note we give structural and classification results for such ancient solutions in terms of their blow-down and, motivated by the…

微分几何 · 数学 2021-12-16 Ben Lambert , Jason D. Lotay , Felix Schulze

We prove regularity, global existence, and convergence of Lagrangian mean curvature flows in the two-convex case. Such results were previously only known in the convex case, of which the current work represents a significant improvement.…

微分几何 · 数学 2023-12-22 Chung-Jun Tsai , Mao-Pei Tsui , Mu-Tao Wang

In this paper we investigate the singularities of Lagrangian mean curvature flows in $\mathbf{C}^m$ by means of smooth singularity models. Type I singularities can only occur at certain times determined by invariants in the cohomology of…

微分几何 · 数学 2015-05-11 Andrew A. Cooper

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…

微分几何 · 数学 2022-11-11 Christopher G. Evans , Ben Lambert , Albert Wood

We study singularities along the Lagrangian mean curvature flow with tangent flows given by multiplicity one special Lagrangian cones that are smooth away from the origin. Some results are: uniqueness of all such tangent flows in dimension…

微分几何 · 数学 2024-10-30 Yang Li , Gábor Székelyhidi

We address the classification of ancient solutions to the Gauss curvature flow under the assumption that the solutions are contained in a cylinder of bounded cross section. For each cylinder of convex bounded cross-section, we show that…

微分几何 · 数学 2022-07-15 Beomjun Choi , Kyeongsu Choi , Panagiota Daskalopoulos

The aim of this paper is to introduce a notion of mean curvature flow soliton general enough to encompass target spaces of constant sectional curvature, Riemannian products or, in increasing generality, warped product spaces.

微分几何 · 数学 2017-07-27 Luis Alías , Jorge H. de Lira , Marco Rigoli

The main result of this paper is a convexity estimate for translating solitons of extrinsic geometric flows which evolve under a $1$-homogeneous concave function in the principal curvatures. In addition, we show examples of these…

微分几何 · 数学 2021-09-28 Jose Torres Santaella

In this paper, we discuss the Lagrangian angles of a family of Lagrangian fibrations moved under mean curvature flow. In the case $n=1$, the angle function is shown to satisfy a degenerated partial differential equation. We prove that any…

微分几何 · 数学 2011-01-10 John Man-shun Ma , Tom Yau-heng Wan