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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 note, we combine the work of Ilmanen and of Colding-Ilmanen-Minicozzi to observe a uniqueness property for tangent flows at the first singular time of a smooth mean curvature flow of a closed surface in 3-dimensional Euclidean…

Differential Geometry · Mathematics 2014-02-27 Jacob Bernstein , Lu Wang

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

We study mean curvature flow of Lagrangians in $\mathbb{C}^n$ that are cohomogeneity-one with respect to a compact Lie group $G \leq \mathrm{SU}(n)$ acting linearly on $\mathbb{C}^n$. Each such Lagrangian necessarily lies in a level set…

Differential Geometry · Mathematics 2023-07-27 Jesse Madnick , Albert Wood

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…

Analysis of PDEs · Mathematics 2016-09-09 Tom Begley , Kim Moore

We show that, for two-dimensional space-periodic incompressible flow, the solution can be evaluated numerically in Lagrangian coordinates with the same accuracy achieved in standard Eulerian spectral methods. This allows the determination…

Chaotic Dynamics · Physics 2009-11-13 T. Matsumoto , J. Bec , U. Frisch

We introduce a notion of nondegenerate neck pinch singularity along the Lagrangian mean curvature flow of surfaces in a Calabi-Yau surface. We show that such singularities can occur, are stable under small perturbations, and any neck pinch…

Differential Geometry · Mathematics 2026-02-18 Gábor Székelyhidi

In this paper we demonstrate that if two mean curvature flows of compact hypersurfaces $M^1_t$ and $M^2_t$ encounter only isolated, multiplicity one, asymptotically conical singularities at the first singular time $T$, and if $M^1_T=M^2_T$…

Differential Geometry · Mathematics 2026-01-19 J. M. Daniels-Holgate , Or Hershkovits

In this expository note we describe important examples of Lagrangian mean curvature flow in $\mathbb{C}^2$ which are invariant under a circle action. Through these examples, we see compact and non-compact situations, long-time existence,…

Differential Geometry · Mathematics 2020-08-19 Jason D. Lotay

We make a conjecture about mean curvature flow of Lagrangian submanifolds of Calabi-Yau manifolds, expanding on \cite{Th}. We give new results about the stability condition, and propose a Jordan-H\"older-type decomposition of (special)…

Differential Geometry · Mathematics 2007-05-23 R. P. Thomas , S. -T. Yau

In this paper we mainly study the type II singularities of the mean curvature flow from a symplectic surface or from an almost calibrated Lagrangian surface in a K \"ahler-Einstein surface. We show the relation between the maximum of the…

Differential Geometry · Mathematics 2008-02-05 Xiaoli Han , Jiayu Li

We show that if an exact special Lagrangian $N\subset \mathbb{C}^n$ has a multiplicity one, cylindrical tangent cone of the form $\mathbb{R}^{k}\times \mathbf{C}$ where $\mathbf{C}$ is a special Lagrangian cone with smooth, connected link,…

Differential Geometry · Mathematics 2022-08-05 Tristan C. Collins , Yang Li

We establish uniqueness and regularity results for tangent cones (at a point or at infinity) with isolated singularities arising from a given immersed stable minimal hypersurface with suitably small (non-immersed) singular set. In…

Differential Geometry · Mathematics 2024-01-30 Nick Edelen , Paul Minter

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

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…

Differential Geometry · Mathematics 2022-02-15 Christopher G. Evans

The line bundle mean curvature flow is a complex analogue of the mean curvature flow for Lagrangian graphs, with fixed points solving the deformed Hermitian-Yang-Mills equation. In this paper we construct two distinct examples of…

Differential Geometry · Mathematics 2023-10-30 Yu Hin Chan , Adam Jacob

We establish interior estimates for singularities of the Lagrangian mean curvature flow when the Lagrangian phase is critical, i.e., $|\Theta|\geq (n-2)\tfrac{\pi}{2}$, and extend our results to the broader class of Lagrangian mean…

Analysis of PDEs · Mathematics 2025-10-28 Arunima Bhattacharya , Ravi Shankar , Jeremy Wall , Diego Yepez

We construct and classify, in the case of two complex dimensions, the possible tangent cones at points of limit spaces of non-collapsed sequences of K\"ahler-Einstein metrics with cone singularities.

Differential Geometry · Mathematics 2021-10-26 Martin de Borbon

Standard singularity theorems are proven in Lorentzian manifolds of arbitrary dimension n if they contain closed trapped submanifolds of arbitrary co-dimension. By using the mean curvature vector to characterize trapped submanifolds, a…

General Relativity and Quantum Cosmology · Physics 2014-11-21 Gregory J. Galloway , José M. M. Senovilla

We construct new examples of special Lagrangian submanifolds $Y\subset \mathbf{C}^{n+1}$, $n\geq 3$ in a neighborhood of the origin, with an isolated singularity, but with cylindrical tangent cone $C\times\mathbf{R}$. Moreover,…

Differential Geometry · Mathematics 2026-04-24 Guoran Ye