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We analyze a variable coefficient coupled HI mKdV system that has shifted nonlocal reductions. The Weiss Tabor Carnevale test gives us coefficient restrictions to perform a time reparametrization to achieve an autonomous integrable model.…

Exactly Solvable and Integrable Systems · Physics 2025-12-23 Taylan Demir

This paper discusses the construction of a new $(3+1)$-dimensional Korteweg-de Vries (KdV) equation. By employing the KdV's recursion operator, we extract two equations, and with elemental computation steps, the obtained result is $…

Mathematical Physics · Physics 2024-04-29 Nardjess Benoudina , Chaudry Massood Khalique , Ji Lin

Hirota bilinear form and multisoliton solution for semidiscrete and fully discrete (difference-difference) versions of supersymmetric KdV equation found by Xue, Levi and Liu [1] is presented. The solitonic interaction term displays a…

Exactly Solvable and Integrable Systems · Physics 2014-12-04 A. S. Carstea

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

Nonisospectral integrable systems can describe solitary waves in nonuniform media. In this paper, we apply the Cauchy matrix approach to construct three types of nonisospectral matrix modified Korteweg-de Vries (mKdV) eqautions and present…

Exactly Solvable and Integrable Systems · Physics 2025-09-01 Mengli Tian , Chunxia Li , Yue Li , Fei Li , Yuqin Yao

We present the hierarchy and soliton solutions associated to a multi-component generalisation of the modified Korteweg-de Vries equation. A recursive formula for obtaining the Lax operators associated to the higher flows of the hierarchy is…

Mathematical Physics · Physics 2020-01-16 Panagiota Adamopoulou , Georgios Papamikos

Generalization of the modified KdV equation to a multi-component system, that is expressed by $(\partial u_i)/(\partial t) + 6 (\sum_{j,k=0}^{M-1} C_{jk} u_j u_k) (\partial u_i)/(\partial x) + (\partial^3 u_{i})/(\partial x^3) = 0, i=0, 1,…

solv-int · Physics 2009-10-31 T. Tsuchida , M. Wadati

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

We study the dynamics of multi-component Bose gas described by the Vector Nonlinear Schr\"{o}dinger Equation (VNLS), aka the Vector Gross--Pitaevskii Equation (VGPE) . Through a Madelung transformation, the VNLS can be reduced to coupled…

Mathematical Physics · Physics 2020-03-24 Swetlana Swarup , Vishal Vasan , Manas Kulkarni

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

A new approach to double-sub equation method is introduced to construct novel solutions for the nonlinear partial differential equations. It is applied to the Korteweg-de Vries (KdV) equation and yields new complexiton solutions of both the…

Exactly Solvable and Integrable Systems · Physics 2016-05-18 Aslı Pekcan

Two different types of N=1 modified KdV equations are shown to possess $N$ soliton solutions. The soliton solutions of these equations are obtained by casting the equations in the bilinear forms using the supersymmetric extension of the…

Exactly Solvable and Integrable Systems · Physics 2009-11-07 Sasanka Ghosh , Debojit Sarma

The aim of this work is to study asymptotically and numerically the interaction of solitons with an external forcing with variable speed using the forced modified Korteweg-de Vries equation (mKdV). We show that the asymptotic predictions…

Fluid Dynamics · Physics 2022-11-30 Marcelo V. Flamarion , Efim Pelinovsky

A coupled Volterra system is proposed. The model can be considered as one of the integrable discrete form of the coupled integrable KdV system which is a significant physical model. Many types of cnoidal waves, positons, negatons (solitons)…

Exactly Solvable and Integrable Systems · Physics 2007-11-06 S. Y. Lou , Bin Tong , Man Jia , Jin-hua Li

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

A new matrix modified Korteweg-de Vries (mmKdV) equation with a $p\times q$ complex-valued potential matrix function is first studied via Riemann-Hilbert approach, which can be reduced to the well-known coupled modified Korteweg-de Vries…

Exactly Solvable and Integrable Systems · Physics 2020-01-20 Wei-Kang Xun , Shou-Fu Tian , Jin-Jie Yang

In this paper, we present a systematic procedure to derive discrete analogues of integrable PDEs via Hirota's bilinear method. This approach is mainly based on the compatibility between an integrable system and its B\"acklund…

Mathematical Physics · Physics 2014-11-04 Yingnan Zhang , Xiangke Chang , Juan Hu , Xingbiao Hu , Hon-Wah Tam

The Lam\'e function can be used to construct plane wave factors and solutions to the Korteweg-de Vries (KdV) and Kadomtsev-Petviashvili (KP) hierarchy. The solutions are usually called elliptic solitons. In this chapter, first, we review…

Exactly Solvable and Integrable Systems · Physics 2023-08-15 Xing Li , Da-jun Zhang

The Korteweg-de Vries (KdV) equation is of fundamental importance in a wide range of subjects with generalization to multi-component systems relevant for multi-species fluids and cold atomic mixtures. We present a general framework in which…

Mathematical Physics · Physics 2025-02-24 Sharath Jose , Manas Kulkarni , Vishal Vasan

A theory for constructing integrable couplings of soliton equations is developed by using various perturbations around solutions of perturbed soliton equations being analytic with respect to a small perturbation parameter. Multi-scale…

solv-int · Physics 2007-05-23 Wen-Xiu Ma