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We study the propagation in three dimensions of internal waves using ray tracing methods and traditional dynamical systems theory. The wave propagation on a cone that generalizes the Saint Andrew's cross justifies the introduction of an…

流体动力学 · 物理学 2021-02-10 Grimaud Pillet , Leo Maas , Thierry Dauxois

This paper is dedicated to the study of a one-dimensional congestion model, consisting of two different phases. In the congested phase, the pressure is free and the dynamics is incompressible, whereas in the non-congested phase, the fluid…

偏微分方程分析 · 数学 2021-11-09 Anne-Laure Dalibard , Charlotte Perrin

This work investigates the semilinear wave equation featuring the displacement dependent term $\sigma(u)\partial_t u $ and nonlinearity $f(u)$. By developing refined space-time a priori estimates under extended ranges of the nonlinearity…

偏微分方程分析 · 数学 2025-05-13 Cuncai Liu , Fengjuan Meng , Chang Zhang

A higher-order nonlinear Boussinesq system with a time-dependent boundary delay is considered. Sufficient conditions are presented to ensure the well-posedness of the problem by utilizing Kato's variable norm technique and the Fixed-Point…

偏微分方程分析 · 数学 2025-05-02 G. Bautista , R. de A. Capistrano--Filho , B. Chentouf , O. Sierra Fonseca

Properties of an infinite system of nonlinearly coupled ordinary differential equations are discussed. This system models some properties present in the equations of motion for an inviscid fluid such as the skew symmetry and the…

偏微分方程分析 · 数学 2007-05-23 Alexey Cheskidov , Susan Friedlander , Natasa Pavlović

We study well-posedness of a first-order-in-time model for nonlinear acoustics with nonhomogeneous boundary conditions in fractional Sobolev spaces. The analysis proceeds by first establishing well-posedness of an abstract parabolic-type…

偏微分方程分析 · 数学 2026-01-19 Pascal Lehner

Although topological materials have recently seen tremendous development, their applications have remained elusive. Simultaneously, there exists considerable interest in pushing the limits of topological materials, including the exploration…

介观与纳米尺度物理 · 物理学 2018-08-01 Sophia R. Sklan , Baowen Li

This article establishes local strong well-posedness and global strong well-posedness close to constant equilibria of a model coupling the primitive equations of ocean and atmospheric dynamics with Hibler's viscous-plastic sea ice model. In…

偏微分方程分析 · 数学 2025-12-19 Tim Binz , Felix Brandt , Matthias Hieber

The work deals with a study of a nonlinear parabolic equation with hysteresis, containing a nonlinear monotone operator in the diffusion term. The well-posedness of the model equation is addressed by using an implicit time discretization…

偏微分方程分析 · 数学 2020-05-07 Achille Landri Pokam Kakeu , Jean Louis Woukeng

In this paper, modulation instability and nonlinear supratransmission are investigated in a one-dimensional chain of atoms using cubic-quartic nonlinearity coefficients. As a result, we establish the discrete nonlinear evolution equation by…

斑图形成与孤子 · 物理学 2023-08-09 Alphonse Houwe , Souleymanou Abbagari , Lanre Akinyemi , Serge Yamigno Doka , Kofane Timoleon Crepin

We prove the existence of a compact, finite dimensional, global attractor for a coupled PDE system comprising a nonlinearly damped semilinear wave equation and a nonlinear system of thermoelastic plate equations, without any mechanical…

偏微分方程分析 · 数学 2008-06-30 Francesca Bucci , Igor Chueshov

We consider a nonlinear fourth order in space partial differential equation arising in the context of the modeling of nonlinear acoustic wave propagation in thermally relaxing viscous fluids. We use the theory of operator semigroups in…

偏微分方程分析 · 数学 2015-09-25 Rainer Brunnhuber , Barbara Kaltenbacher

A general method for the derivation of asymptotic nonlinear shallow water and deep water models is presented. Starting from a general dimensionless version of the water-wave equations, we reduce the problem to a system of two equations on…

大气与海洋物理 · 物理学 2007-10-09 David Lannes , Philippe Bonneton

This article is devoted to the proof of the well-posedness of a model describing waves propagating in shallow water in horizontal dimension $d=2$ and in the presence of a fixed partially immersed object. We first show that this…

偏微分方程分析 · 数学 2023-06-28 David Lannes , Tatsuo Iguchi

The aim of this paper is to prove the existence and qualitative property of random attractors for a stochastic nonlocal delayed reaction-diffusion equation (SNDRDE) on a semi-infinite interval with a Dirichlet boundary condition on the…

动力系统 · 数学 2023-02-14 Wenjie Hu , Quanxin Zhu , Tomás Caraballo

In this paper,under an abstract setting we establish the existence of spatially inhomogeneous steady states and the asymptotic propagation properties for a large class of monotone evolution systems without spatial translation invariance.…

偏微分方程分析 · 数学 2020-07-09 Taishan Yi , Xiao-Qiang Zhao

Active particles often swim in confined environments. The transport mechanisms, especially the global one as reflected by the Taylor dispersion model, are of great practical interest to various applications. For active dispersion process in…

流体动力学 · 物理学 2023-06-22 Weiquan Jiang , Guoqian Chen

This work is devoted to the analysis of high frequency solutions to the equations of nonlinear elasticity in a half-space. We consider surface waves (or more precisely, Rayleigh waves) arising in the general class of isotropic hyperelastic…

偏微分方程分析 · 数学 2016-04-18 Jean-Francois Coulombel , Mark Williams

Here we study the wave propagation and stability of general relativistic non-resistive dissipative second-order magnetohydrodynamic equations in curved space-time. We solve the Boltzmann equation for a system of particles and antiparticles…

广义相对论与量子宇宙学 · 物理学 2022-05-09 Ankit Kumar Panda , Victor Roy

In this paper, we investigate a generic compressible two-fluid model with common pressure ($P^+=P^-$) in $\mathbb{R}^3$. Under some smallness assumptions, Evje-Wang-Wen [Arch Rational Mech Anal 221:1285--1316, 2016] obtained the global…

偏微分方程分析 · 数学 2022-04-25 Guochun Wu , Lei Yao , Yinghui Zhang