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We use a simple method that leads to the integrals involved in obtaining the traveling wave solutions of wave equations with one and two exponential nonlinearities. When the constant term in the integrand is zero, implicit solutions in…

数学物理 · 物理学 2019-03-14 S. C. Mancas , H. C. Rosu , M. Perez-Maldonado

We prove that traveling waves in viscous compressible liquids are a generic phenomenon. The setting for our result is a horizontally infinite, finite depth layer of compressible, barotropic, viscous fluid, modeled by the free boundary…

偏微分方程分析 · 数学 2023-01-03 Noah Stevenson , Ian Tice

The theory of traveling waves and spreading speeds is developed for time-space periodic monotone semiflows with monostable structure. By using traveling waves of the associated Poincar\'e maps in a strong sense, we establish the existence…

偏微分方程分析 · 数学 2015-04-16 Jian Fang , Xiao Yu , Xiao-Qiang Zhao

In this paper we prove a local-in-time existence theorem for an initial-boundary value problem related to a model of temperature-dependent phase segregation that generalizes the standard Allen-Cahn's model. The problem is ruled by a system…

偏微分方程分析 · 数学 2010-05-07 Pierluigi Colli , Gianni Gilardi , Paolo Podio-Guidugli , Jürgen Sprekels

In this paper, we consider bounded positive solutions to the Allen-Cahn equation on complete noncompact Riemannian manifolds without boundary. We derive gradient estimates for those solutions. As an application, we get a Liouville type…

微分几何 · 数学 2019-08-13 Songbo Hou

We show that the combined action of diffraction and convection (walk-off) in wave mixing processes leads to a nonlinear-symmetry-breaking in the generated traveling waves. The dynamics near to threshold is reduced to a Ginzburg-Landau…

斑图形成与孤子 · 物理学 2009-11-11 Roberta Zambrini , Maxi San Miguel , Celine Durniak , Majid Taki

We prove existence results for travelling waves in discrete, damped, dc-driven sine-Gordon equations with periodic boundary conditions.

斑图形成与孤子 · 物理学 2007-05-23 Guy Katriel

The $\mathcal{C}^{\infty}$-structure-based method of integration of distributions of vector fields is used to classify all the traveling wave solutions of the modified Zakharov--Kuznetsov equation. This work unifies and generalizes the…

偏微分方程分析 · 数学 2024-11-22 A. J. Pan-Collantes , C. Muriel , A. Ruiz

In the seminal work of Benjamin,\cite{Ben} in the late 70's, he has derived the ubiquitous Benjamin model, which is a reduced model in the theory of water waves. Notably, it contains two parameters in its dispersion part and under some…

偏微分方程分析 · 数学 2024-08-30 Sevdzhan Hakkaev , Milena Stanislavova , Atanas G. Stefanov

We find a new class of solutions that are traveling waves on the boundary of two--dimensional droplet of ideal fluid. We assume that the free surface is subject only to the force of surface tension, and the fluid flow is potential. We use…

流体动力学 · 物理学 2019-11-20 Sergey A. Dyachenko

This paper presents a conditional convergence result of solutions to the Allen--Cahn equation with arbitrary potentials to a De Giorgi type $ \mathrm{BV} $-solution to multiphase mean curvature flow. Moreover we show that De Giorgi type…

偏微分方程分析 · 数学 2023-01-31 Pascal Steinke

In this paper we study existence of traveling waves for 1-D compressible Euler system with dispersion (which models quantum effects through the Bohm potential) and nonlinear viscosity in the context of quantum hydrodynamic models for…

偏微分方程分析 · 数学 2020-04-16 Corrado Lattanzio , Delyan Zhelyazov

The main topic of this paper is the analysis and modeling of stop-and-go waves, observable in experiments of single lane movement with pedestrians. The velocity density relation using measurements on a 'microscopic' scale shows the…

物理与社会 · 物理学 2010-03-30 Andrea Portz , Armin Seyfried

We give sufficient conditions for the existence of positive travelling wave solutions for multi-dimensional autonomous reaction-diffusion systems with distributed delay. To prove the existence of travelling waves, we give an abstract…

经典分析与常微分方程 · 数学 2015-03-17 Teresa Faria , Sergei Trofimchuk

Nonlinear wave phenomena such as stop-and-go traffic patterns are widely observed in vehicular flow but remain challenging to describe within a rigorous mathematical framework. Motivated by this, we investigate nonlinear wave structures in…

动力系统 · 数学 2026-05-18 Kota Ikeda , Tomoyuki Miyaji

We analyze the weak solution concept for the Fornberg-Whitham equation in case of traveling waves with a piecewise smooth profile function. The existence of discontinuous weak traveling wave solutions is shown by means of analysis of a…

偏微分方程分析 · 数学 2018-04-23 Guenther Hoermann

We consider high frequency homogenization in periodic media for travelling waves of several different equations: the wave equation for scalar-valued waves such as acoustics; the wave equation for vector-valued waves such as electromagnetism…

偏微分方程分析 · 数学 2016-09-28 Davit Harutyunyan , Richard V. Craster , Graeme W. Milton

For a class of scalar partial differential equations that incorporate convection, diffusion, and possibly dispersion in one space and one time dimension, the stability of traveling wave solutions is investigated. If the initial perturbation…

偏微分方程分析 · 数学 2007-05-23 Hans Engler

Travelling waves of densities of binary fluid mixtures are investigated near a critical point. The free energy is considered in a non-local form taking account of the density gradients. The equations of motions are applied to a universal…

经典物理 · 物理学 2011-10-26 Henri Gouin , Augusto Muracchini , Tommaso Ruggeri

We examine the possibility of travelling wave solutions within the nonlinear Euler-Heisenberg electrodynamics. Since this theory resembles in its form the electrodynamics in matter, it is a priori not clear if there exist travelling wave…

高能物理 - 唯象学 · 物理学 2017-09-07 A. Bermudez Manjarres , Marek Nowakowski