English
Related papers

Related papers: Solitons in the Korteweg-de Vries Equation

200 papers

We establish a novel numerical and analytical framework for solving the Korteweg--de Vries (KdV) equation in the negative Sobolev spaces, where classical numerical methods fail due to their reliance on high regularity and inability to…

Numerical Analysis · Mathematics 2025-06-30 Jiachuan Cao , Buyang Li , Yifei Wu , Fangyan Yao

We investigate the integrable structure and soliton dynamics of a coupled modified Korteweg-de Vries (cmKdV) system with a real symmetric coupling matrix. We introduce a vector reformulation of Hirota's bilinear formalism in which both the…

Exactly Solvable and Integrable Systems · Physics 2026-05-13 Laurent Delisle , Amine Jaouadi

In this work, we mainly study the general $N$-soliton solutions of the nonlocal modified Korteweg-de Vries (mKdV) equation by utilizing the Riemann-Hilbert (RH) method. For the initial value belonging to Schwarz space, we firstly obtain the…

Exactly Solvable and Integrable Systems · Physics 2021-11-30 Xiao-Fan Zhang , Shou-Fu Tian , Jin-Jie Yang

We consider a randomly perturbed Korteweg-de Vries equation. The perturbation is a random potential depending both on space and time, with a white noise behavior in time, and a regular, but stationary behavior in space. We investigate the…

Analysis of PDEs · Mathematics 2009-01-15 Anne De Bouard , Arnaud Debussche

We demonstrate the existence of complex solitary wave and periodic solutions of the Kortweg de-vries (KdV) and modified Kortweg de-Vries (mKdV) equations. The solutions of the KdV (mKdV) equation appear in complex-conjugate pairs and are…

Mathematical Physics · Physics 2024-03-07 Subhrajit Modak , Akhil P. Singh , P. K. Panigrahi

In this paper we study the convergence of a fully discrete Crank-Nicolson Galerkin scheme for the initial value problem associated with the fractional Korteweg-de Vries (KdV) equation, which involves the fractional Laplacian and non-linear…

Numerical Analysis · Mathematics 2023-11-14 Mukul Dwivedi , Tanmay Sarkar

We study the long-time stability of soliton solutions to the Korteweg-deVries equation. We consider solutions $u$ to the KdV with initial data in $H^s$, $0 \leq s < 1$, that are initially close in $H^s$ norm to a soliton. We prove that the…

Analysis of PDEs · Mathematics 2007-05-23 S. Raynor , G. Staffilani

This paper studies the behavior of solitons in the Korteweg-de Vries equation under the influence of multiplicative noise. We introduce stochastic processes that track the amplitude and position of solitons based on a rescaled frame…

Analysis of PDEs · Mathematics 2024-02-06 Rik W. S. Westdorp , Hermen Jan Hupkes

We consider solutions of the generalized Korteweg-de Vries equations (gKdV) which are non dispersive in some sense (in the spirit of [18]) and which remain close to multi-solitons. We show that these solutions are necessarily pure…

Analysis of PDEs · Mathematics 2020-07-06 Xavier Friederich

The Korteweg-de Vries (KdV) equation governs the propagation of nonlinear internal and surface gravity waves in shallow ocean environments, where the balance between nonlinear steepening and frequency-dependent dispersion produces solitons.…

The interface problem for the linear Korteweg-de Vries (KdV) equation in one-dimensional piecewise homogeneous domains is examined by constructing an explicit solution in each domain. The location of the interface is known and a number of…

Analysis of PDEs · Mathematics 2016-09-20 Bernard Deconinck , Natalie E. Sheils , David A. Smith

The core focus of this research work is to obtain invariant solutions and conservation laws of the (3+1)-dimensional ZK equation, a higher-dimensional generalization of the Korteweg--de Vries (KdV) equation, which describes the phenomenon…

Analysis of PDEs · Mathematics 2025-09-04 Anshika Singhal , Urvashi Joshi , Rajan Arora

With the nonuniform media taken into account, the nonisospectral and variable-coefficient Korteweg-de Vries equation, which describes various physical situations such as fluid dynamics and plasma, is under investigation in this paper. With…

Pattern Formation and Solitons · Physics 2017-10-17 Ling-Jun Liu , Xin Yu

The N-cnoidal solution of the Korteweg-de Vries (KdV) evolution equation is presented based on the prolongation structure theory of Wahlquist and Estabrook [J. Math. Phys. \textbf{16}, 1 (1975)]. The generalized KdV cnoidal wave solutions…

Pattern Formation and Solitons · Physics 2018-05-08 M. Akbari-Moghanjoughi

Under investigation in this paper is the nonisospectral and variable coefficients modified Kortweg-de Vries (vc-mKdV) equation, which manifests in diverse areas of physics such as fluid dynamics, ion acoustic solitons and plasma mechanics.…

Pattern Formation and Solitons · Physics 2017-10-17 Ling-Jun Liu , Xin Yu

In the paper two kinds of solutions are derived for the complex Korteweg-de Vries equation, including blow-up solutions and non-singular solutions. We derive blow-up solutions from known 1-soliton solution and a double-pole solution. There…

Exactly Solvable and Integrable Systems · Physics 2015-06-15 Ying-ying Sun , Juan-ming Yuan , Da-jun Zhang

The supercritical composition of a plasma model with cold positive ions in the presence of a two-temperature electron population is investigated, initially by a reductive perturbation approach, under the combined requirements that there be…

Pattern Formation and Solitons · Physics 2016-04-13 Frank Verheest , Carel P. Olivier , Willy A. Hereman

Nonlinear non-Abelian Korteweg-de Vries (KdV) and modified Korteweg-de Vries (mKdV) equations and their links via Baecklund transformations are considered. The focus is on the construction of soliton solutions admitted by matrix modified…

Mathematical Physics · Physics 2020-02-13 Sandra Carillo , Mauro Lo Schiavo , Cornelia Schiebold

The Korteweg-de Vries equation (KdV) and various generalized, most often semi- linear versions have been studied for about 50 years. Here, the focus is made on a quasi-linear generalization of the KdV equation, which has a fairly general…

Analysis of PDEs · Mathematics 2016-01-06 Colin Mietka

We study the conditions for the formation and propagation of Korteweg-de Vries (KdV) solitons in nuclear matter. In a previous work we have derived a KdV equation from Euler and continuity equations in non-relativistic hydrodynamics. In the…

Nuclear Theory · Physics 2013-05-07 D. A. Fogaça , F. S. Navarra