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In this paper we study qualitative properties of initial traces of solutions to the porous medium equation with power nonlinearity, and obtain necessary conditions for the existence of solutions to the corresponding Cauchy problem.…

偏微分方程分析 · 数学 2025-07-17 Kazuhiro Ishige , Nobuhito Miyake , Ryuichi Sato

We derive the dispersion decay for solutions of the 1D discrete Schroedinger and wave equations. Based on previous works, we weaken the conditions on potentials.

偏微分方程分析 · 数学 2014-09-02 E. Kopylova

This study deals with the analysis of the Cauchy problem of a general class of nonlocal nonlinear equations modeling the bi-directional propagation of dispersive waves in various contexts. The nonlocal nature of the problem is reflected by…

偏微分方程分析 · 数学 2020-08-04 Ceni Babaoglu , Husnu A. Erbay , Albert Erkip

We study the Cauchy problem of the damped wave equation \begin{align*} \partial_{t}^2 u - \Delta u + \partial_t u = 0 \end{align*} and give sharp $L^p$-$L^q$ estimates of the solution for $1\le q \le p < \infty\ (p\neq 1)$ with derivative…

偏微分方程分析 · 数学 2019-03-14 Masahiro Ikeda , Takahisa Inui , Mamoru Okamoto , Yuta Wakasugi

Strichartz-type estimates for one-dimensional surface water-waves under surface tension are studied, based on the formulation of the problem as a nonlinear dispersive equation. We establish a family of dispersion estimates on time scales…

偏微分方程分析 · 数学 2009-10-09 Hans Christianson , Vera Mikyoung Hur , Gigliola Staffilani

The problem of propagating nonlinear acoustic waves is considered; the solution to which, both with and without damping, having been obtained to-date starting from the Navier-Stokes-Duhem equations together with the continuity and thermal…

流体动力学 · 物理学 2021-09-29 Markus Scholle

We study the Cauchy problem for a system of equations corresponding to a singular limit of radiative hydrodynamics, namely the 3D radiative compressible Euler system coupled to an electromagnetic field. Assuming smallness hypotheses for the…

偏微分方程分析 · 数学 2017-05-23 Xavier Blanc , Bernard Ducomet , Sarka Necasova

In this paper, we study the viscous Boussinesq equation in the whole space $\mathbb{R}^n$, which describes the propagation of small amplitude and long waves on the surface of water with viscous effects. Concerning the linearized Cauchy…

偏微分方程分析 · 数学 2022-03-16 Wenhui Chen , Tuan Anh Dao

The work treats smoothing and dispersive properties of solutions to the Schrodinger equation with magnetic potential. Under suitable smallness assumption on the potential involving scale invariant norms we prove smoothing - Strichartz…

代数拓扑 · 数学 2010-08-25 Vladimir Georgiev , Atanas Stefanov , Mirko Tarulli

In this paper we study the existence of global-in-time energy solutions to the Cauchy problem for the Euler-Poisson-Darboux equation, with a power nonlinearity: $$u_{tt}-u_{xx} + \frac\mu{t}\,u_t = |u|^p \,, \quad t>t_0, \…

偏微分方程分析 · 数学 2025-02-28 Marcello D'Abbicco

We study the Cauchy problem for the radial energy critical nonlinear wave equation in three dimensions. Our main result proves almost sure scattering for radial initial data below the energy space. In order to preserve the spherical…

偏微分方程分析 · 数学 2020-06-17 Bjoern Bringmann

The solution of the Schrodinger equation with a linear potential is considered. We use algebraic methods to obtain the explicit form of the solution for the explicitly time dependent Hamiltonian and discuss the general conditions which…

数学物理 · 物理学 2010-10-11 G. Dattoli , K. Zhukovsky

We study linear stability of planar travelling waves for a scalar reaction-diffusion equation with non-linear anisotropic diffusion. The mathematical model is derived from the full thermo-hydrodynamical model describing the process of…

偏微分方程分析 · 数学 2014-12-19 Léonard Monsaingeon

In this paper we consider a wave model with non-effective mass and dissipation terms and provide asymptotic descriptions of its representation of solutions. In particular we conclude sharp estimates for a corresponding energy and estimates…

偏微分方程分析 · 数学 2015-05-06 Wanderley Nunes do Nascimento , Jens Wirth

We demonstrate that a sufficiently smooth solution of the relativistic Euler equations that represents a dynamical compact liquid body, when expressed in Lagrangian coordinates, determines a solution to a system of non-linear wave equations…

偏微分方程分析 · 数学 2020-01-20 Todd A. Oliynyk

We establish the existence of a conservative weak solution to the Cauchy problem for the nonlinear variational wave equation $u_{tt} - c(u)(c(u)u_x)_x=0$, for initial data of finite energy. Here $c(\cdot)$ is any smooth function with…

偏微分方程分析 · 数学 2009-11-11 Alberto Bressan , Yuxi Zheng

In this paper, our main aim is to derive $L^p-L^q$ estimates of the solution $u_k(x,t)$ ( t fixed) of the Cauchy problem for the homogeneous linear wave equation associated to the Dunkl Laplacian $\Delta_k$, $$\Delta_ku_k(x,t)=…

经典分析与常微分方程 · 数学 2017-06-29 Béchir Amri , Mohamed Gaidi

We consider the Cauchy problem for the wave equation in the whole space, R^n, with initial data which are distributions supported on finite sets. The main result is a precise description of the geometry of the sets of stationary points of…

偏微分方程分析 · 数学 2007-05-23 Mark L. Agranovsky , Eric Todd Quinto

We consider the Cauchy problem in ${\bf R}^{n}$ for strongly damped wave equations. We derive asymptotic profiles of these solutions with weighted $L^{1,1}({\bf R}^{n})$ data by using a method introduced in [10].

偏微分方程分析 · 数学 2014-02-26 Ryo Ikehata

For a system consisting of several Dirac fields and a particle, we study the Cauchy problem with random initial data. We assume that the initial measure has zero mean value, a finite mean charge density, a translation-invariant covariance…

数学物理 · 物理学 2025-04-23 T. V. Dudnikova