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We consider a short time existence problem motivated by a conjecture of Joyce. Specifically we prove that given any compact Lagrangian $L\subset \mathbb{C}^n$ with a finite number of singularities, each asymptotic to a pair of…

偏微分方程分析 · 数学 2016-09-09 Tom Begley , Kim Moore

We obtain explicit solutions of the mean curvature flow in some submanifolds of the Euclidean space. We give particularly an explicit solution of the flow of a hypersurface in the Lagrangian self-expander $L$ which is constructed in the…

微分几何 · 数学 2015-03-10 Hiroshi Nakahara

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

We prove rigidity of any properly immersed noncompact Lagrangian shrinker with single valued Lagrangian angle for Lagrangian mean curvature flows. Our pointwise approach also provides an ele- mentary proof to the known rigidity results for…

偏微分方程分析 · 数学 2017-09-19 Dongsheng Li , Yingfeng Xu , Yu Yuan

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…

微分几何 · 数学 2016-09-07 Knut Smoczyk , Mu-Tao Wang

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

In this article we consider the Lagrangian mean curvature flow of compact, circle-invariant, almost calibrated Lagrangian surfaces in hyperk\"ahler 4-manifolds with circle symmetry. We show that this Lagrangian mean curvature flow can be…

微分几何 · 数学 2024-12-23 Jason D. Lotay , Goncalo Oliveira

We review some recent results on the mean curvature flows of Lagrangian submanifolds from the perspective of geometric partial differential equations. These include global existence and convergence results, characterizations of first-time…

微分几何 · 数学 2011-04-19 Mu-Tao Wang

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

In this paper we study the short time existence problem for the (generalized) Lagrangian mean curvature flow in (almost) Calabi--Yau manifolds when the initial Lagrangian submanifold has isolated conical singularities modelled on stable…

微分几何 · 数学 2014-01-23 Tapio Behrndt

This paper contains a new proof of the short-time existence for the flow by curvature of a network of curves in the plane. Appearing initially in metallurgy and as a model for the evolution of grain boundaries, this flow was later treated…

微分几何 · 数学 2021-01-13 Jorge Lira , Rafe Mazzeo , Alessandra Pluda , Mariel Saez

We prove a Thomas--Yau-type conjecture for monotone Lagrangian tori satisfying a symmetry condition in the complex projective plane $\mathbb{CP}^2$. We show that such tori exist for all time under Lagrangian mean curvature flow with…

微分几何 · 数学 2022-02-15 Christopher G. Evans

We prove the existence of the flow by curvature of regular planar networks starting from an initial network which is non-regular. The proof relies on a monotonicity formula for expanding solutions and a local regularity result for the…

偏微分方程分析 · 数学 2018-02-21 Tom Ilmanen , André Neves , Felix Schulze

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 establish a convergence result for the mean curvature flow starting from a totally real submanifold which is "almost minimal" in a precise, quantitative sense. This extends, and makes effective, a result of H. Li for the Lagrangian mean…

微分几何 · 数学 2024-05-21 Tristan C. Collins , Adam Jacob , Yu-Shen Lin

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

This article is concerned with the second boundary value problem of the Lagrangian mean curvature type equation arising from special Lagrangian geometry. By the parabolic method, we consider a fully nonlinear parabolic equation with oblique…

偏微分方程分析 · 数学 2026-04-22 Jiguang Bao , Qinfeng Jiang

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

We establish short-time existence and regularity for higher-order flows generated by a class of polynomial natural tensors that, after an adjustment by the Lie derivative of the metric with respect to a suitable vector field, have strongly…

微分几何 · 数学 2010-10-21 Eric Bahuaud , Dylan Helliwell

We introduce Lagrangian Flow Networks (LFlows) for modeling fluid densities and velocities continuously in space and time. By construction, the proposed LFlows satisfy the continuity equation, a PDE describing mass conservation in its…

机器学习 · 计算机科学 2023-12-15 F. Arend Torres , Marcello Massimo Negri , Marco Inversi , Jonathan Aellen , Volker Roth
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