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We investigate the existence of weak expanding solutions of the harmonic map flow for maps with values into a smooth closed Riemannian manifold. We prove the existence of such solutions in case the target manifold is isometrically embedded…

微分几何 · 数学 2020-04-16 Alix Deruelle , Tobias Lamm

We consider the 1-harmonic flow of maps from a bounded domain into a submanifold of a Euclidean space, i.e. the gradient flow of the total variation functional restricted to maps taking values in the manifold. We restrict ourselves to…

偏微分方程分析 · 数学 2017-12-08 Lorenzo Giacomelli , Michał Łasica , Salvador Moll

Thermodynamically consistent models for two-phase flow in porous media have attracted significant attention in recent years. In this paper, we prove the existence, uniqueness and regularity of the weak solution to such a recent model…

偏微分方程分析 · 数学 2026-02-05 Huangxin Chen , Jisheng Kou , Haitao Leng , Shuyu Sun , Hai Zhao

We introduce a flow of maps from a compact surface of arbitrary genus to an arbitrary Riemannian manifold which has elements in common with both the harmonic map flow and the mean curvature flow, but is more effective at finding minimal…

微分几何 · 数学 2016-05-18 Melanie Rupflin , Peter M. Topping

This paper investigates the short-time existence and uniqueness of Ricci flow solutions on Finsler manifolds. The main results of this paper are theorems demonstrating the short-time existence of the flow solution for $n$-dimensional…

微分几何 · 数学 2023-04-07 Behroz Bidabad , Maral K. Sedaghat

The harmonic map energy of a map from a closed, constant-curvature surface to a closed target manifold can be seen as a functional on the space of maps and domain metrics. We consider the gradient flow for this energy. In the absence of…

微分几何 · 数学 2019-09-17 James Kohout , Melanie Rupflin , Peter M. Topping

In this paper, we are concerned with the initial-Neumann boundary value problem of the Schr\"{o}dinger flow for maps from a smooth bounded domain in an Euclidean space into $\mathbb{S}^2$. By adopting a novel method due to B. Chen and Y.D.…

偏微分方程分析 · 数学 2026-04-10 Bo Chen , Guangwu Wang , Youde Wang

Mean curvature flow evolves isometrically immersed base manifolds $M$ in the direction of their mean curvatures in an ambient manifold $\bar{M}$. If the base manifold $M$ is compact, the short time existence and uniqueness of the mean…

微分几何 · 数学 2007-06-13 Bing-Long Chen , Le Yin

We develop a new boundary condition for the weak inverse mean curvature flow, which gives canonical and non-trivial solutions in bounded domains. Roughly speaking, the boundary of the domain serves as an outer obstacle, and the evolving…

微分几何 · 数学 2025-02-10 Kai Xu

The Teichm\"uller harmonic map flow, introduced in [9], evolves both a map from a closed Riemann surface to an arbitrary compact Riemannian manifold, and a constant curvature metric on the domain, in order to reduce its harmonic map energy…

微分几何 · 数学 2012-09-19 Melanie Rupflin , Peter M. Topping , Miaomiao Zhu

This article presents an analysis of the normalized Yamabe flow starting at and preserving a class of compact Riemannian manifolds with incomplete edge singularities and negative Yamabe invariant. Our main results include uniqueness,…

偏微分方程分析 · 数学 2020-03-03 Eric Bahuaud , Boris Vertman

We show that solutions to certain higher-order intrinsic geometric flows on a compact manifold, including some flows generated by the ambient obstruction tensor, are unique. With the goal of providing a complete self-contained proof,…

微分几何 · 数学 2017-05-17 Eric Bahuaud , Dylan Helliwell

In this paper we focus on the uniqueness question for (expanding) solutions of the Harmonic map flow coming out of smooth 0-homogeneous maps with values into a closed Riemannian manifold. We introduce a relative entropy for two purposes. On…

微分几何 · 数学 2018-07-03 Alix Deruelle

In this paper, we first establish regularity of the heat flow of biharmonic maps into the unit sphere $S^L\subset\mathbb R^{L+1}$ under a smallness condition of renormalized total energy. For the class of such solutions to the heat flow of…

偏微分方程分析 · 数学 2025-06-30 Jay Hineman , Tao Huang , Changyou Wang

We introduce and study a conformal heat flow of harmonic maps defined by an evolution equation for a pair consisting of a map and a conformal factor of metric on the two-dimensional domain. This flow is designed to postpone finite time…

微分几何 · 数学 2024-06-07 Woongbae Park

We introduce a new framework to deal with rough differential equations based on flows and their approximations. Our main result is to prove that measurable flows exist under weak conditions, even solutions to the corresponding rough…

概率论 · 数学 2019-05-17 Antoine Brault , Antoine Lejay

In this paper we prove the existence of weak solutions for a thermodynamically consistent phase-field model introduced in [26] in two and three dimensions of space. We use a notion of solution inspired by [18], where the pointwise internal…

偏微分方程分析 · 数学 2019-07-31 Robert Lasarzik , Elisabetta Rocca , Giulio Schimperna

We show short time existence and uniqueness of $\C^{1,1}$ solutions to the mean curvature flow with obstacles, when the obstacles are of class $\C^{1,1}$. If the initial interface is a periodic graph we show long time existence of the…

偏微分方程分析 · 数学 2014-09-26 Gwenael Mercier , Matteo Novaga

In this paper, we extend a Ma\~n\'e's famous result on expansive homeomorphisms, originally presented in [17], to the setting of flows. Specifically, we provide a complete characterization of minimal expansive flows without fixed points on…

动力系统 · 数学 2025-08-22 Alfonso Artigue , Elias Rego

The purpose of this note is to prove the existence of global weak solutions to the flow associated to integro-differential harmonic maps into spheres and Riemannian homogeneous manifolds.

偏微分方程分析 · 数学 2016-11-08 Armin Schikorra , Yannick Sire , Changyou Wang
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