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In this paper, we investigate two hyperbolic flows obtained by adding forcing terms in direction of the position vector to the hyperbolic mean curvature flows in \cite{klw,hdl}. For the first hyperbolic flow, as in \cite{klw}, by using…

微分几何 · 数学 2012-11-26 Jing Mao

We study the linearization stability of the Einstein constraint equations on an asymptotically hyperbolic manifold. In particular we prove that these equations are linearization stable in the neighborhood of vacuum solutions for a…

广义相对论与量子宇宙学 · 物理学 2012-01-17 Romain Gicquaud

We define a (mean curvature flow) entropy for Radon measures in $\mathbb{R}^n$ or in a compact manifold. Moreover, we prove a monotonicity formula of the entropy of the measures associated with the parabolic Allen-Cahn equations. If the…

微分几何 · 数学 2021-02-10 Ao Sun

We consider a mass conserved Allen-Cahn equation $u_t=\Delta u+ \e^{-2} (f(u)-\e\lambda(t))$ in a bounded domain with no flux boundary condition, where $\e\lambda(t)$ is the average of $f(u(\cdot,t))$ and $-f$ is the derivative of a double…

偏微分方程分析 · 数学 2017-03-29 Xinfu Chen , Danielle Hilhorst , Elisabeth Logak

By a semi-Lagrangian change of coordinates, the hydrostatic Euler equations describing free-surface sheared flows is rewritten as a system of quasilinear equations, where stability conditions can be determined by the analysis of its…

We study the spatial-homogeneity of stable solutions of almost-periodic parabolic equations. It is shown that if the nonlinearity satisfies a concave or convex condition, then any linearly stable almost automorphic solution is…

动力系统 · 数学 2018-04-24 Yi Wang , Jianwei Xiao , Dun Zhou

We consider existence and uniqueness for several examples of linear parabolic equations formulated on moving hypersurfaces. Specifically, we study in turn a surface heat equation, an equation posed on a bulk domain, a novel coupled…

偏微分方程分析 · 数学 2015-08-04 Amal Alphonse , Charles M. Elliott , Björn Stinner

In this paper, we study diagonal hyperbolic systems in one space dimension. Based on a new gradient entropy estimate, we prove the global existence of a continuous solution, for large and non-decreasing initial data. We remark that these…

数学物理 · 物理学 2009-04-14 Ahmad El Hajj , Régis Monneau

In this paper, we study two local--nonlocal settings for parabolic--elliptic evolution systems. In our problems we have a disjoint partition of the spacial domain $\Omega$ as $\Omega=A\cup B$ and we first consider a local parabolic equation…

偏微分方程分析 · 数学 2026-04-14 Luiza Camile Rosa da Silva , Julio Daniel Rossi

This article is a sequel to [M.Z.Z.1] aimed at completing the characterization of the pathwise local structure of solutions of semilinear stochastic evolution equations (see's) and stochastic partial differential equations (spde's) near…

概率论 · 数学 2008-09-19 Salah-Eldin A. Mohammed , Tusheng Zhang , Huaizhong Zhao

A new Monte-Carlo method for solving linear parabolic partial differential equations is presented. Since, in this new scheme, the particles are followed backward in time, it provides great flexibility in choosing critical points in…

数值分析 · 数学 2025-10-20 Johan Carlsson

We construct solutions of the constraint equation with non constant mean curvature on an asymptotically hyperbolic manifold by the conformal method. Our approach consists in decreasing a certain exponent appearing in the equations,…

广义相对论与量子宇宙学 · 物理学 2015-05-20 Romain Gicquaud , Anna Sakovich

It is well known that the classic Allen-Cahn equation satisfies the maximum bound principle (MBP), that is, the absolute value of its solution is uniformly bounded for all time by certain constant under suitable initial and boundary…

数值分析 · 数学 2021-07-13 Kun Jiang , Lili Ju , Jingwei Li , Xiao Li

We investigate the motion of a family of closed curves evolving according to the geometric evolution law on a given two dimensional manifold which is embedded or immersed in the three-dimensional Euclidean space. We derive a system of…

偏微分方程分析 · 数学 2025-12-23 Miroslav Kolar , Daniel Sevcovic

We consider parabolic equations with mixed boundary conditions and domain inhomogeneities supported on a lower dimensional hypersurface, enforcing a jump in the conormal derivative. Only minimal regularity assumptions on the domain and the…

偏微分方程分析 · 数学 2013-02-05 A. F. M. ter Elst , Martin Meyries , Joachim Rehberg

In this paper, we study a diffuse interface model for two-phase immiscible flows coupled by Navier-Stokes equations and mass-conserving Allen-Cahn equations. The contact line (the intersection of the fluid-fluid interface with the solid…

偏微分方程分析 · 数学 2025-03-12 Yinghua Li , Yuanxiang Yan , Xijun Yin

We prove convergence of solutions to the parabolic Allen-Cahn equation to Brakke's motion by mean curvature in space forms, generalizing previous results from [15] in Euclidean space. We show that a sequence of measures, associated to…

偏微分方程分析 · 数学 2013-11-19 Adriano Pisante , Fabio Punzo

We study the Cauchy problem for general, nonlinear, strictly hyperbolic systems of partial differential equations in one space variable. First, we re-visit the construction of the solution to the Riemann problem and introduce the notion of…

偏微分方程分析 · 数学 2009-11-13 Olivier Glass , Philippe G. LeFloch

This paper is devoted to studying the local behavior of non-negative weak solutions to the doubly non-linear parabolic equation \begin{equation*} \partial_t u^q - \text{div}\big(|D u|^{p-2}D u\big) = 0 \end{equation*} in a space-time…

偏微分方程分析 · 数学 2023-05-16 Verena Bögelein , Frank Duzaar , Ugo Gianazza , Naian Liao , Christoph Scheven

In this paper, we study the parabolic equations of the form $$ \left\{ \begin{array}{rcll} Lu(y,t) &=& f, \qquad &(y,t)\in Q,\\ u(y,t)&=& 0, \qquad &(y,t)\in \partial Q, \\ u(y,t)&& \hspace{-8mm}\mbox{is uniformly bounded from below},…

偏微分方程分析 · 数学 2025-04-02 Jingqi Liang , Lidan Wang