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相关论文: The Parametric Willmore Flow

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We study integrability of the derivative of solutions to a singular one-dimensional parabolic equation with initial data in $W^{1,1}$. In order to avoid additional difficulties we consider only the periodic boundary conditions. The problem…

偏微分方程分析 · 数学 2017-05-25 Atsushi Nakayasu , Piotr Rybka

In this paper, we develop an adiabatic theory for the evolution of large closed surfaces under the area-constrained Willmore (ACW) flow in a three-dimensional asymptotically Schwarzschild manifold. We construct explicitly a map, defined on…

微分几何 · 数学 2022-04-13 Jingxuan Zhang

Let f:\Sigma_1 --> \Sigma_2 be a map between compact Riemannian manifolds of constant curvature. This article considers the evolution of the graph of f in the product of \Sigma_1 and \Sigma_2 by the mean curvature flow. Under suitable…

微分几何 · 数学 2009-11-07 Mu-Tao Wang

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

For smooth surfaces properly immersed in the unit ball of $\RR^n$ with density close to one and small Willmore energy, the optimal a priori estimate(bi-Lipschitz and $W^{2,2}$ parametrization)is provided. We also discuss the quantitative…

微分几何 · 数学 2022-12-07 Yuchen Bi , Jie Zhou

The goal of this paper is to discuss some of the results in [31] and [32] and expand upon the work there by proving a global weak existence result as well as a first bubbling analysis in finite time. In addition, an alternative local…

偏微分方程分析 · 数学 2021-12-17 Jerome Wettstein

This paper is concerned with regular flows of incompressible weakly viscoelastic fluids which obey a differential constitutive law of Oldroyd type. We study the newtonian limit for weakly viscoelastic fluid flows in $\R^N$ or $\T^N$ for…

偏微分方程分析 · 数学 2008-03-04 Luc Molinet , Raafat Talhouk

We consider a nematic liquid crystal flow with partially free boundary in a smooth bounded domain in $\mathbb{R}^2$. We prove regularity estimates and the global existence of weak solutions enjoying partial regularity properties, and a…

偏微分方程分析 · 数学 2023-08-09 Yannick Sire , Yantao Wu , Yifu Zhou

In this article we study the asymptotic behavior of incompressible, ideal, time-dependent two dimensional flow in the exterior of a single smooth obstacle when the size of the obstacle becomes very small. Our main purpose is to identify the…

流体动力学 · 物理学 2007-05-23 D. Iftimie , M. C. Lopes Filho , H. J. Nussenzveig Lopes

In this paper, we prove the long-time existence and uniqueness of the conical K\"ahler-Ricci flow with weak initial data which admits $L^{p}$ density for some $p>1$ on Fano manifold. Furthermore, we study the convergence behavior of this…

微分几何 · 数学 2016-05-30 Jiawei Liu , Xi Zhang

A conservative formulation of the drift-reduced fluid plasma model is constructed by analytically inverting the implicit relation defining the polarisation velocity as a function of the time-derivative of the electric field. The obtained…

等离子体物理 · 物理学 2026-02-18 Brenno De Lucca , Paolo Ricci , Micol Bassanini , Sergio García Herreros , Zeno Tecchiolli

We show that any open set that is a finite distance away from a Lipschitz subgraph will become a Lipschitz subgraph after flowing under fractional mean curvature flow for a finite, universal time. Our proof is quantitative and inherently…

偏微分方程分析 · 数学 2019-05-23 Stephen Cameron

On a smooth closed Riemannian manifold, we show short time existence of smooth solutions to the $(\alpha,\beta)$-Ricci-Yamabe flow, which is a natural generalization of the Ricci flow and the Yamabe flow. We also establish some long time…

微分几何 · 数学 2023-02-08 Liangdi Zhang

We investigate the shallow flow of viscous fluid into and out of a channel whose gap width increases as a power-law ($x^n$), where $x$ is the downstream axis. The fluid flows slowly, while injected at a rate in the form of $t^\alpha$, where…

流体动力学 · 物理学 2023-12-13 M-S. Liu , H. E. Huppert

In this paper, we observe that if the initial data of pseudo Calabi flow has volume form $C^0$ close to a smooth one, then the flow is immediately smooth for $t>0$. As an application, we show that if the initial data has volume form $C^0$…

微分几何 · 数学 2026-03-23 Jingrui Cheng , Junhao Tian

We employ the curve shortening flow to establish three new results on the dynamics of geodesic flows of closed Riemannian surfaces. The first one is the stability, under $C^0$-small perturbations of the Riemannian metric, of certain flat…

动力系统 · 数学 2025-05-29 Marcelo R. R. Alves , Marco Mazzucchelli

We prove the existence of nonnegative weak solutions to a class of second and fourth order nonautonomous nonlinear evolution equations with an explicitly time-dependent mobility function posed on the whole space $\mathbb{R}^d$, for…

偏微分方程分析 · 数学 2016-04-27 Jonathan Zinsl

This paper regroups some of the basic properties of Lipschitz maps and their flows. Many of the results presented here are classical in the case of smooth maps. We prove them here in the Lipschitz case for a better understanding of the…

经典分析与常微分方程 · 数学 2019-01-23 Youness Boutaib

We outline how discrete analogues of the conservation of potential vorticity may be achieved in Finite Element numerical schemes for a variational system which has the particle relabelling symmetry, typically shallow water equations. We…

数值分析 · 数学 2023-04-24 Elizabeth L. Mansfield

The variational free-Lagrange (VFL) method for shallow water is a free-Lagrange method with the additional property that it preserves the variational structure of shallow water. The VFL method was first derived in this context by…

数值分析 · 数学 2010-01-28 Matthew Dixon , Todd Ringler