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We prove convergence of the nonlocal Allen-Cahn equation to mean curvature flow in the sharp interface limit, in the situation when the parameter corresponding to the kernel goes to zero fast enough with respect to the diffuse interface…

Analysis of PDEs · Mathematics 2024-10-14 Helmut Abels , Christoph Hurm , Maximilian Moser

We establish existence and non-existence results for entire solutions to the fractional Allen-Cahn equation in $\mathbb R^3$, which vanish on helicoids and are invariant under screw-motion. In addition, we prove that helicoids are surfaces…

Analysis of PDEs · Mathematics 2015-09-03 Eleonora Cinti , Juan Davila , Manuel Del Pino

In this paper, we obtain an Ecker-Huisken type result for entire graphs with parallel mean curvature.

Differential Geometry · Mathematics 2009-11-13 Yuxin Dong

A common paradigm in phase-field models with singular potentials is that global-in-time weak solutions converge to a single equilibrium only after undergoing asymptotic regularization. However, in arXiv:2510.17296 we introduced a novel…

Analysis of PDEs · Mathematics 2026-04-01 Maurizio Grasselli , Andrea Poiatti

We identify, in spacetimes satisfying the null convergence condition, a certain natural class of null hypersurfaces that admit null sections with constant surface gravity. Our work is meant to offer complementary results to previous work on…

General Relativity and Quantum Cosmology · Physics 2023-08-22 Ivan P. Costa e Silva , José L. Flores , Benjamín Olea

The free boundary Allen--Cahn equation $\Delta u=0$ in $\{|u|<1\}$, $|\nabla u|=1/\varepsilon$ on $\partial\{|u|<1\}$ has recently attracted considerable attention because it retains the essential features of the classical Allen--Cahn…

Analysis of PDEs · Mathematics 2025-11-04 Jingeon An , Kiichi Tashiro

In this manuscript, we study bounded positive solutions to the Finslerian Allen-Cahn equation. The Allen-Cahn equation is widely applied and connected to many mathematical branches. We find the Finslerian Allen-Cahn equation is also an…

Differential Geometry · Mathematics 2024-08-13 Bin Shen

This paper gives the first affirmative answer to the question of the global existence of Boltzmann equations without angular cutoff in the $L^\infty$-setting. In particular, we show that when the initial data is close to equilibrium and the…

Analysis of PDEs · Mathematics 2021-10-12 R. Alonso , Y. Morimoto , W. Sun , T. Yang

We study critical points of a one-parameter family of functionals arising in combustion models. The problems we consider converge, for infinitesimal values of the parameter, to Bernoulli's free boundary problem, also known as one-phase…

Analysis of PDEs · Mathematics 2021-10-19 Alessandro Audrito , Joaquim Serra

We study the Allen-Cahn equation with respect to a transport term in a bounded domain. We prove that the limit interface is the mean curvature flow with the transport term, given the condition that the energy is uniformly bounded with…

Analysis of PDEs · Mathematics 2023-09-19 Yuki Tsukamoto

We consider the sharp interface limit for the scalar-valued and vector-valued Allen-Cahn equation with homogeneous Neumann boundary condition in a bounded smooth domain $\Omega$ of arbitrary dimension $N\geq 2$ in the situation when a…

Analysis of PDEs · Mathematics 2021-05-18 Maximilian Moser

Musta\c{t}\u{a} has given a conjecture for the graded Betti numbers in the minimal free resolution of the ideal of a general set of points on an irreducible projective algebraic variety. For surfaces in $\mathbb P^3$ this conjecture has…

Commutative Algebra · Mathematics 2018-05-29 Mats Boij , Juan C. Migliore , Rosa María Miró-Roig , Uwe Nagel

We study the obstacle problem associated to mean curvature flow. We add to the geometric vanishing-viscosity approximation of Evans and Spruck a singular perturbation that penalizes the violation of the constraint, and pass to the limit.…

Analysis of PDEs · Mathematics 2025-07-09 Tim Laux , Keisuke Takasao

In this paper, we consider the sharp interface limit of a matrix-valued Allen-Cahn equation, which takes the form: $$\partial_t A=\Delta A-\varepsilon^{-2}( A A^{\mathrm{T}}A-…

Analysis of PDEs · Mathematics 2021-06-16 Mingwen Fei , Fanghua Lin , Wei Wang , Zhifei Zhang

We analyze the continuum limit of a thresholding algorithm for motion by mean curvature of one dimensional interfaces in various space-time discrete regimes. The algorithm can be viewed as a time-splitting scheme for the Allen-Cahn equation…

Analysis of PDEs · Mathematics 2014-11-04 Oleksandr Misiats , Nung Kwan Yip

Let $(M^{n+1},g)$ be a closed Riemannian manifold of dimension $3\le n+1\le 5$. We show that, if the metric $g$ is generic or if the metric $g$ has positive Ricci curvature, then $M$ contains infinitely many geometrically distinct constant…

Differential Geometry · Mathematics 2024-08-27 Liam Mazurowski , Xin Zhou

With several concrete examples of zero mean curvature surfaces in $\boldsymbol{R}^3_1$ containing a light-like line recently having been found, here we construct all real analytic germs of zero mean curvature surfaces by applying the…

Differential Geometry · Mathematics 2017-07-25 Masaaki Umehara , Kotaro Yamada

We establish a phase transition known as the "all-or-nothing" phenomenon for noiseless discrete channels. This class of models includes the Bernoulli group testing model and the planted Gaussian perceptron model. Previously, the existence…

Statistics Theory · Mathematics 2023-04-11 Jonathan Niles-Weed , Ilias Zadik

In this article we study eternal solutions to the Allen-Cahn equation in the 3-sphere, in view of the connection between the gradient flow of the associated energy functional, and the mean curvature flow. We construct eternal integral…

Differential Geometry · Mathematics 2021-07-27 Jingwen Chen , Pedro Gaspar

A minimal space-like surface in Minkowski space-time is said to be of general type if it is free of degenerate points. The fact that minimal space-like surfaces of general type in Minkowski space-time admit canonical parameters of the first…

Differential Geometry · Mathematics 2018-05-09 Georgi Ganchev , Krasimir Kanchev