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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 Cauchy problem for the nonlinear wave equation $$\Box u=(\partial u)^2, \qquad u(0)=u_0, u_t(0)=u_1$$ in three space dimensions is considered. The data $(u_0,u_1)$ are assumed to belong to $\widehat{H}^r_s(\R^3) \times…

偏微分方程分析 · 数学 2009-12-23 Axel Gruenrock

We discuss the Cauchy problem for a system of semilinear wave equations in three space dimensions with multiple wave speeds. Though our system does not satisfy the standard null condition, we show that it admits a unique global solution for…

偏微分方程分析 · 数学 2022-03-29 Kunio Hidano , Kazuyoshi Yokoyama , Dongbing Zha

Global existence for small data Cauchy problem of semilinear wave equations with scaling invariant damping in 3-D is established in this work, assuming that the data are radial and the constant in front of the damping belongs to $[1.5, 2)$.…

偏微分方程分析 · 数学 2021-02-02 Ning-An Lai , Yi Zhou

This paper is concerned with the analysis of the Cauchy problem of a general class of two-dimensional nonlinear nonlocal wave equations governing anti-plane shear motions in nonlocal elasticity. The nonlocal nature of the problem is…

偏微分方程分析 · 数学 2020-08-04 H. A. Erbay , S. Erbay , A. Erkip

We consider the Cauchy-Dirichlet problem for semilinear wave equations in a three space dimensional domain exterior to a bounded and non-trapping obstacle. We obtain a detailed estimate for the lower bound of the lifespan of classical…

偏微分方程分析 · 数学 2010-09-08 Soichiro Katayama , Hideo Kubo

In this paper, we initiate the study of global stability for anisotropic systems of quasilinear wave equations. Equations of this kind arise naturally in the study of crystal optics, and they exhibit birefringence. We introduce a physical…

偏微分方程分析 · 数学 2021-04-23 John Anderson

This paper is devoted to the investigation of long-time behaviour of solutions to wave equations with quadratic nonlinearity and cubic Dirac equations with Hartree-type nonlinearity. We consider the nonlinearity here with enough simplicity…

偏微分方程分析 · 数学 2022-07-07 Seokchang Hong

The goal of this monograph is to prove that any solution of the Cauchy problem for the capillarity-gravity water waves equations, in one space dimension, with periodic, even in space, initial data of small size $\epsilon$, is almost…

偏微分方程分析 · 数学 2017-02-28 Massimiliano Berti , Jean-Marc Delort

The Cauchy problem for a nonlinear elastic wave equations with viscoelastic damping terms is considered on the 3 dimensional whole space. Decay and smoothing properties of the solutions are investigated when the initial data are…

偏微分方程分析 · 数学 2021-11-09 Yoshiyuki Kagei , Hiroshi Takeda

This paper is devoted to the analysis of the incompressible Euler equation in a time-dependent fluid domain, whose interface evolution is governed by the law of linear elasticity. Our main result asserts that the Cauchy problem is globally…

偏微分方程分析 · 数学 2025-04-02 Thomas Alazard , Chengyang Shao , Haocheng Yang

The aim of this paper is to study the global existence of solutions to a coupled wave-Klein-Gordon system in space dimension two when initial data are small, smooth and mildly decaying at infinity. Some physical models strictly related to…

偏微分方程分析 · 数学 2018-10-25 Annalaura Stingo

In this paper, regularity properties, Strichartz type estimates to solutions of multipo{\i}nt Cauchy problem for linear and nonlinear abstract wave equations in vector-valued function spaces are obtained. The equation includes a linear…

偏微分方程分析 · 数学 2017-09-28 Veli Shakhmurov

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

We study the well-posedness of the Cauchy problem with Dirichlet or Neumann boundary conditions associated to an H 1 -critical semilinear wave equation on a smooth bounded 2D domain {\Omega}. First, we prove an appropriate Strichartz type…

偏微分方程分析 · 数学 2010-08-17 S. Ibrahim , R. Jrad

We study blow-up behavior of solutions for the Cauchy problem of the semilinear wave equation with time-dependent damping. When the damping is effective, and the nonlinearity is subcritical, we show the blow-up rates and the sharp lifespan…

偏微分方程分析 · 数学 2021-12-14 Kazumasa Fujiwara , Masahiro Ikeda , Yuta Wakasugi

We review recent progress on the long-time regularity of solutions of the Cauchy problem for the water waves equations, in two and three dimensions. We begin by introducing the free boundary Euler equations and discussing the local…

偏微分方程分析 · 数学 2018-02-07 Alexandru D. Ionescu , Fabio Pusateri

The open question, which seems to be also the final part, in terms of studying the Cauchy problem for the weakly coupled system of damped wave equations or reaction-diffusion equations, is so far known as the sharp lifespan estimates in the…

偏微分方程分析 · 数学 2022-01-27 Wenhui Chen , Tuan Anh Dao

A fully non-linear kinetic Boltzmann equation for anyons and large initial data is studied in a periodic 1d setting. Strong L1 solutions are obtained for the Cauchy problem. The main results concern global existence, uniqueness, and…

数学物理 · 物理学 2014-08-01 L. Arkeryd , A. Nouri

In this paper we consider the Cauchy problem for the nonlinear wave equation (NLW) with quadratic derivative nonlinearities in two space dimensions. Following Gr\"{u}nrock's result in 3D, we take the data in the Fourier-Lebesgue spaces…

偏微分方程分析 · 数学 2017-12-22 Viktor Grigoryan , Allison Tanguay