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We study the existence of traveling wave solutions to a unidirectional shallow water model which incorporates the full linear dispersion relation for both gravitational and capillary restoring forces. Using functional analytic techniques,…

偏微分方程分析 · 数学 2018-07-31 Mathew A. Johnson , J. Douglas Wright

Traveling modulating pulse solutions consist of a small amplitude pulse-like envelope moving with a constant speed and modulating a harmonic carrier wave. Such solutions can be approximated by solitons of an effective nonlinear Schrodinger…

偏微分方程分析 · 数学 2024-03-07 Tomas Dohnal , Dmitry E. Pelinovsky , Guido Schneider

We study the equation $u_t +uu_x +u-K*u=0$ in the case of an arbitrary $K \geq 0$, which is a generalization of a model for radiating gas, in which $K(y)={1/2}e^{-|y|}$. Using a monotone iteration scheme argument we establish the existence…

数学物理 · 物理学 2007-05-23 Adam Chmaj

We investigate the existence and spectral stability of traveling wave solutions for a class of fourth-order semilinear wave equations, commonly referred to as beam equations. Using variational methods based on a constrained maximization…

偏微分方程分析 · 数学 2025-12-16 Vishnu Iyer , Ross Parker , Atanas G. Stefanov

This paper is concerned with the traveling wave solutions and asymptotic spreading of delayed lattice differential equations without quasimonotonicity. The spreading speed is obtained by constructing auxiliary equations and using the theory…

动力系统 · 数学 2014-05-07 Shuxia Pan

We study the stability/instability of the subsonic travelling waves of the Nonlinear Schr\"odinger Equation in dimension one. Our aim is to propose several methods for showing instability (use of the Grillakis-Shatah-Strauss theory, proof…

偏微分方程分析 · 数学 2016-01-20 David Chiron

In the present study, we revisit the theme of wave propagation in locally resonant granular crystal systems, also referred to as Mass-in-Mass systems. We use 3 distinct approaches to identify relevant traveling waves. The first consists of…

斑图形成与孤子 · 物理学 2015-06-23 H. Xu , P. G. Kevrekidis , A. Stefanov

We study travelling-wave spatially periodic solutions of a forced Cahn-Hilliard equation. This is a model for phase separation of a binary mixture, subject to external forcing. We look at arbitrary values of the mean mixture concentration,…

动力系统 · 数学 2018-08-31 Lennon O'Naraigh

We study travelling wave solutions, that is, solutions of the form $v(t, x) = e^{i\lambda t}u(g(t)x)$, to nonlinear Schr\"odinger and Klein-Gordon equations on Riemannian manifolds, both compact and non-compact ones, with emphasis on the…

偏微分方程分析 · 数学 2015-09-08 Mayukh Mukherjee

We consider nontrivial finite energy traveling waves for the Landau-Lifshitz equation with easy-plane anisotropy. Our main result is the existence of a minimal energy for these traveling waves, in dimensions two, three and four. The proof…

偏微分方程分析 · 数学 2014-09-02 André de Laire

For the Nonlinear Schrodinger equation in dimension 2, the existence of a global minimizer of the energy at fixed momentum has been established by Bethuel-Gravejat-Saut. This minimizer is a travelling wave for the Nonlinear Schrodinger…

偏微分方程分析 · 数学 2023-11-22 David Chiron , Eliot Pacherie

We prove the first bifurcation result of time quasi-periodic traveling waves solutions for space periodic water waves with vorticity. In particular we prove existence of small amplitude time quasi-periodic solutions of the gravity-capillary…

偏微分方程分析 · 数学 2021-03-17 Massimiliano Berti , Luca Franzoi , Alberto Maspero

In this paper, a ratio-dependent Holling-Tanner system with nonlocal diffusion is taken into account, where the prey is subject to a strong Allee effect. To be special, by applying Schauder's fixed point theorem and iterative technique, we…

偏微分方程分析 · 数学 2023-06-02 Hongliang Li , Min Zhao , Rong Yuan

We study the existence and numerical computation of traveling wave solutions for a family of nonlinear higher-order Boussinesq evolution systems with a Hamiltonian structure. This general Boussinesq evolution system includes a broad class…

偏微分方程分析 · 数学 2025-11-18 Roberto de A. Capistrano-Filho , Juan Carlos Muñoz , José R. Quintero

We consider the non-monotone degenerate diffusion equation with time delay. Different from the linear diffusion equation, the degenerate equation allows for semi-compactly supported traveling waves. In particular, we discover…

偏微分方程分析 · 数学 2020-06-24 Tianyuan Xu , Shanming Ji , Ming Mei , Jingxue Yin

In this paper, we study the existence and stability of travelling wave solutions of a kinetic reaction-transport equation. The model describes particles moving according to a velocity-jump process, and proliferating thanks to a reaction…

偏微分方程分析 · 数学 2014-08-12 Emeric Bouin , Vincent Calvez , Grégoire Nadin

Recently, the Whitham and capillary-Whitham equations were shown to accurately model the evolution of surface waves on shallow water. In order to gain a deeper understanding of these equations, we compute periodic, traveling-wave solutions…

流体动力学 · 物理学 2019-02-01 John D. Carter , Morgan Rozman

We look for traveling wave solutions to the nonlinear Schr\"odinger equation with a subsonic speed, covering several physical models with Sobolev subcritical nonlinear effects. Our approach is based on a variant of Sobolev-type inequality…

偏微分方程分析 · 数学 2025-07-31 Laura Baldelli , Bartosz Bieganowski , Jarosław Mederski

We consider one dimensional porous media equations in spatially periodic environment. We will construct a periodic traveling sharp wave whose profile tends to a positive steady state at left infinity and takes zero on the right half line,…

偏微分方程分析 · 数学 2025-06-24 Bendong Lou

In this paper, we prove global regularity, scattering, and the non-existence of small traveling waves for the $3D$ finite depth capillary waves system for small initial data. The non-existence of small traveling waves shows a fundamental…

偏微分方程分析 · 数学 2016-11-18 Xuecheng Wang