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This paper is concerned with the large-time dynamics of bounded solutions of reaction-diffusion equations with bounded or unbounded initial support in R N. We start with a survey of some old and recent results on the spreading speeds of the…

偏微分方程分析 · 数学 2024-07-02 François Hamel , Luca Rossi

We consider time-dependent convection-diffusion problems with high P\'eclet number of order $\mathcal{O}(\varepsilon^{-1})$ in thin three-dimensional graph-like networks consisting of cylinders that are interconnected by small domains…

偏微分方程分析 · 数学 2024-04-12 Taras Mel'nyk , Christian Rohde

This paper is concerned with parabolic gradient systems of the form \[ u_t=-\nabla V (u) + u_{xx}\,, \] where the spatial domain is the whole real line, the state variable $u$ is multidimensional, and the potential $V$ is coercive at…

偏微分方程分析 · 数学 2023-06-27 Emmanuel Risler

Motivated by Gilbarg-Weinberger's early work on asymptotic properties of steady plane solutions of the Navier-Stokes equations on a neighborhood of infinity \cite{GW1978} , we investigate asymptotic properties of steady plane solutions of…

偏微分方程分析 · 数学 2022-08-10 Lili Wang , Wendong Wang

We derive the long time asymptotic of solutions to an evolutive Hamilton-Jacobi-Bellman equation in a bounded smooth domain, in connection with ergodic problems recently studied in \cite{bcr}. Our main assumption is an appropriate…

偏微分方程分析 · 数学 2017-08-02 Daniele Castorina , Annalisa Cesaroni , Luca Rossi

This paper is concerned with the asymptotic behavior of the solution to the Euler equations with time-depending damping on quadrant $(x,t)\in \mathbb{R}^+\times\mathbb{R}^+$, \begin{equation}\notag \partial_t v - \partial_x u=0, \qquad…

偏微分方程分析 · 数学 2017-08-31 Haibo Cui , Haiyan Yin , Changjiang Zhu , Limei Zhu

We study the asymptotic behavior of Lipschitz continuous solutions of nonlinear degenerate parabolic equations in the periodic setting. Our results apply to a large class of Hamilton-Jacobi-Bellman equations. Defining S as the set where the…

偏微分方程分析 · 数学 2013-06-05 Olivier Ley , Vinh Duc Nguyen

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

It is proved that the solutions to the singular stochastic $p$-Laplace equation, $p\in (1,2)$ and the solutions to the stochastic fast diffusion equation with nonlinearity parameter $r\in (0,1)$ on a bounded open domain $\Lambda\subset\R^d$…

概率论 · 数学 2012-05-08 Ioana Ciotir , Jonas M. Tölle

Following the classical result of long-time asymptotic convergence towards the Gaussian kernel that holds true for integrable solutions of the Heat Equation posed in the Euclidean Space $\mathbb{R}^n$, we examine the question of long-time…

偏微分方程分析 · 数学 2019-02-12 Juan Luis Vázquez

We consider an abstract first order evolution equation in a Hilbert space in which the linear part is represented by a self-adjoint nonnegative operator A with discrete spectrum, and the nonlinear term has order greater than one at the…

偏微分方程分析 · 数学 2014-02-24 Marina Ghisi , Massimo Gobbino , Alain Haraux

The non-hydrostatic, quasigeostrophic approximation for rapidly rotating Rayleigh-B\'enard convection admits a class of exact `single mode' solutions. These solutions correspond to steady laminar convection with a separable structure…

流体动力学 · 物理学 2015-06-03 Ian Grooms

In this paper, we study a particular class of solutions to the Rayleigh--Boltzmann equation, known in the nonlinear setting as \emph{homoenergetic solutions}. These solutions take the form $ g(x, v, t) = f(v - L(t)x, t),$ where the matrix…

偏微分方程分析 · 数学 2026-01-23 Nicola Miele , Alessia Nota , Juan J. L. Velázquez

We develop the algebraic method based on the Lie algebra of quadratic combinations of left and right superoperators associated with matrices to study the Lindblad dynamics of multimode bosonic systems coupled a thermal bath and described by…

量子物理 · 物理学 2025-06-23 Andrei Gaidash , Alexei D. Kiselev , Anton Kozubov , George Miroshnichenko

In this paper, we study solutions $u$ of parabolic systems in divergence form with zero Dirichlet boundary conditions in the upper-half cylinder $Q_1^+\subset \mathbb{R}^{n+1}$, where the coefficients are weighted by $x_n^\alpha$,…

偏微分方程分析 · 数学 2025-07-31 Hongjie Dong , Seongmin Jeon

We prove the short-time asymptotic formula for the interfaces and local solutions near the interfaces for the nonlinear double degenerate reaction-diffusion equation of turbulent filtration with fast diffusion and strong absorption \[…

偏微分方程分析 · 数学 2019-03-21 Ugur G. Abdulla , Adam Prinkey , Montie Avery

In this paper, we study numerical methods for the solution of partial differential equations on evolving surfaces. The evolving hypersurface in $\Bbb{R}^d$ defines a $d$-dimensional space-time manifold in the space-time continuum…

数值分析 · 数学 2014-04-09 Maxim A. Olshanskii , Arnold Reusken , Xianmin Xu

In this paper we analyze a nonlinear parabolic equation characterized by a singular diffusion term describing very fast diffusion effects. The equation is settled in a smooth bounded three-dimensional domain and complemented with a general…

偏微分方程分析 · 数学 2015-10-05 Giulio Schimperna , Antonio Segatti , Sergey Zelik

We propose and analyse numerical schemes for a system of quasilinear, degenerate evolution equations modelling biofilm growth as well as other processes such as flow through porous media and the spreading of wildfires. The first equation in…

数值分析 · 数学 2024-04-05 R. K. H. Smeets , K. Mitra , I. S. Pop , S. Sonner

For convex co-compact hyperbolic quotients $X=\Gamma\backslash\hh^{n+1}$, we analyze the long-time asymptotic of the solution of the wave equation $u(t)$ with smooth compactly supported initial data $f=(f_0,f_1)$. We show that, if the…

偏微分方程分析 · 数学 2009-11-13 Colin Guillarmou , Frédéric Naud