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The authors of the paper "The third-order perturbed Korteweg-de Vries equation for shallow water waves with a non-flat bottom" [1] claim that they have derived the full third order perturbed KdV equation for the case of uneven bottom. We…

流体动力学 · 物理学 2018-04-06 Piotr Rozmej , Anna Karczewska

The propagation of small amplitude stationary profile nonlinear solitary waves in a pair plasma is investigated employing the reductive perturbation technique via well-known Korteweg de Vries (KdV) and modified KdV (mKdV) equations, we tend…

等离子体物理 · 物理学 2024-06-19 Tanvir I. Rajib

The evolution of a solitary wave with very weak nonlinearity which was originally investigated by Miles [4] is revisited. The solution for a one-dimensional gravity wave in a water of uniform depth is considered. This leads to finding the…

斑图形成与孤子 · 物理学 2017-04-11 S. G. Sajjadi , T. A. Smith

During the past decades the study of strongly interacting fluids experienced a tremendous progress. In the relativistic heavy ion accelerators, specially the RHIC and LHC colliders, it became possible to study not only fluids made of…

核理论 · 物理学 2013-09-09 D. A. Fogaça , F. S. Navarra , L. G. Ferreira Filho

We propose a hierarchy of nonlinearly dispersive generalized Korteweg--de Vries (KdV) evolution equations based on a modification of the Lagrangian density whose induced action functional the KdV equation extremizes. It is shown that two…

数学物理 · 物理学 2016-08-09 Ivan C. Christov

In this work we present a new method for solving of the Korteweg-de Vries (KdV) equation q'_t = - \dfrac{3}{2} q q'_x + \dfrac{1}{4} q"'_{xxx}. The proposed method is a particular case of the theory of evolutionary vessels, developed in…

偏微分方程分析 · 数学 2011-11-10 Andrey Melnikov

We study the small amplitude linearization of the Korteweg de Vries equation on the line with a local defect scattering waves represented by a metric graph domain adjoined at one point. For a representative collection of examples, we derive…

偏微分方程分析 · 数学 2025-12-23 Dave Smith

We study the zero-dispersion limit for a class of Korteweg--de Vries (KdV)-type initial-boundary value problems on the half-line, with Dirichlet boundary conditions assigned at \(x=0\). We focus on the outflow regime, where the solution of…

偏微分方程分析 · 数学 2026-05-26 Paolo Antonelli , Pierangelo Marcati , Laura V. Spinolo

In this paper, we study the nonlinear dispersive waves including the rarefaction and dispersive shock waves in the discrete modified KdV equation through the numerical simulations of the dispersive Riemann problems. In particular, we…

斑图形成与孤子 · 物理学 2026-04-06 Su Yang

Numerical simulations of the unidirectional random waves are performed within the Korteweg -de Vries equation to investigate the statistical properties of surface gravity waves in shallow water. Nonlinear evolution shows the relaxation of…

可精确求解与可积系统 · 物理学 2007-05-23 Anna Kokorina , Efim Pelinovsky

The Novikov-Veselov (NV) equation is a dispersive (2+1)-dimensional nonlinear evolution equation that generalizes the (1+1)-dimensional Korteweg-deVries (KdV) equation. This paper considers the stability of plane wave soliton solutions of…

数学物理 · 物理学 2013-04-05 Ryan Croke , Jennifer Mueller , Andreas Stahel

(Due to the limit on the number of characters for an abstract set by arXiv, the full abstract can not be displayed here. See the abstract in the paper.) We study dispersive equations with a time non-homogeneous modulation acting on the…

偏微分方程分析 · 数学 2024-10-22 Khalil Chouk , Massimiliano Gubinelli , Guopeng Li , Jiawei Li , Tadahiro Oh

The study of hyperbolic waves involves various notions which help characterise how these structures evolve. One important facet is the notion of \emph{genuine nonlinearity}, namely the ability for shocks and rarefactions to form instead of…

数学物理 · 物理学 2020-09-18 Daniel James Ratliff

The existence of ``dispersion-managed solitons'', i.e., stable pulsating solitary-wave solutions to the nonlinear Schr\"{o}dinger equation with periodically modulated and sign-variable dispersion is now well known in nonlinear optics. Our…

可精确求解与可积系统 · 物理学 2009-11-07 Simon Clarke , Boris A. Malomed , Roger Grimshaw

The interaction of localised solitary waves with large-scale, time-varying dispersive mean flows subject to nonconvex flux is studied in the framework of the modified Korteweg-de Vries (mKdV) equation, a canonical model for nonlinear…

斑图形成与孤子 · 物理学 2021-11-01 Kiera van der Sande , Gennady A. El , Mark A. Hoefer

We study travelling wave solutions to Korteweg--de Vries type equations which have double power nonlinearities with integer indices, such as the Gardner equation, and fractional dispersion. Whether these equations have ground state…

偏微分方程分析 · 数学 2025-11-12 Kaito Kokubu

The KdV equation is a model equation for waves at the surface of an inviscid incompressible fluid, and it is well known that the equation describes the evolution of unidirectional waves of small amplitude and long wavelength fairly…

流体动力学 · 物理学 2016-03-31 Mats K. Brun , Henrik Kalisch

Dissipationless hydrodynamics regularized by dispersion describe a number of physical media including water waves, nonlinear optics, and Bose-Einstein condensates. As in the classical theory of hyperbolic equations where a non-convex flux…

斑图形成与孤子 · 物理学 2017-03-14 Patrick Sprenger , Mark A. Hoefer

Compactons are studied in the framework of the Korteweg-de Vries (KdV) equation with the sublinear nonlinearity. Compactons represent localized bell-shaped waves of either polarity which propagate to the same direction as waves of the…

斑图形成与孤子 · 物理学 2021-06-02 Dmitry E. Pelinovsky , Alexey V. Slunyaev , Anna V. Kokorina , Efim N. Pelinovsky

We consider periodic solutions to equations of Korteweg-Devries type. While the stability theory for periodic waves has received much some attention the theory is much less developed than the analogous theory for solitary wave stability,…

偏微分方程分析 · 数学 2009-07-27 Jared C. Bronski , Mathew A. Johnson , Todd Kapitula