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The construction of a nonautonomous mixed mKdV/sine-Gordon model is proposed by employing an infinite dimensional affine Lie algebraic structure within the zero curvature representation. A systematic construction of soliton solutions is…

Exactly Solvable and Integrable Systems · Physics 2010-08-27 J. F. Gomes , G. R. de Melo , L. H. Ymai , A. H. Zimerman

The Darboux-Dressing Transformations are applied to the Lax pair associated to systems of coupled nonlinear wave equations in the case of boundary values which are appropriate to both bright and dark soliton solutions. The general formalism…

Exactly Solvable and Integrable Systems · Physics 2015-06-26 Antonio Degasperis , Sara Lombardo

In this paper, we primarily construct Darboux transformation(DT) of the nonlocal coupled modified complex integrable dispersionless (cm-CID) equation, which is first proposed by the connection with a nonlocal coupled modified complex short…

Exactly Solvable and Integrable Systems · Physics 2025-10-16 Hong-Qian Sun , Shou-Feng Shen , Zuo-Nong Zhu

It is known that the Kadomtsev-Petviashvili (KP) equation can be decomposed into the first two members of the coupled Ablowitz-Kaup-Newell-Segur (AKNS) hierarchy by the binary nonlinearization of Lax pairs. In this paper, we construct the…

Mathematical Physics · Physics 2012-08-09 Tao Xu , Fu-Wei Sun , Yi Zhang , Juan Li

The solution of a coupled system consisting of generalized Korteweg-de Vries-type equations is obtained for all time where the initial data are analytic on a band in the complex plane. We show that the width of this band decreases…

Analysis of PDEs · Mathematics 2022-02-04 A. Atmani , A. Boukarou , D. Benterki , Kh. Zennir

Darboux transformation is one of the methods used in solving nonlinear evolution equation. Basically, the Darboux transformation is a linear algebra formulation of the solutions of the Zakharov-Shabat system of equations associated with the…

Mathematical Physics · Physics 2014-11-24 Agung Trisetyarso

A novel approach is introduced for deriving exact solutions to nonlinear systems of ordinary differential equations. This method consists of four parts. In the initial part, the examined nonlinear differential equation system is transformed…

Exactly Solvable and Integrable Systems · Physics 2025-08-25 Prakash Kumar Das

A recent development in the derivation of soliton solutions for initial-boundary value problems through Darboux transformations, motivated to reconsider solutions to the nonlinear Schr\"odinger (NLS) equation on two half-lines connected via…

Mathematical Physics · Physics 2020-01-13 K. T. Gruner

It is shown that, three different Lax operators in the Dym hierarchy, produce three generalized coupled Harry Dym equations. These equations transform, via the reciprocal link, to the coupled two-component KdV system. The first equation…

Exactly Solvable and Integrable Systems · Physics 2015-06-11 Ziemowit Popowicz

In this paper, we study the Cauchy problem and multi-soliton solutions for a two-component short pulse system. For the Cauchy problem, we first prove the existence and uniqueness of solution with an estimate of the analytic lifespan, and…

Exactly Solvable and Integrable Systems · Physics 2015-12-22 Zhaqilao , Qiaoyi Hu , Zhijun Qiao

The relation between the infinite-dimensional 3-algebras and the dispersionless KdV hierarchy is investigated. Based on the infinite-dimensional 3-algebras, we derive two compatible Nambu Hamiltonian structures. Then the dispersionless KdV…

Exactly Solvable and Integrable Systems · Physics 2015-06-03 Min-Ru Chen , Shi-Kun Wang , Ke Wu , Wei-Zhong Zhao

The aim of these lectures is to show that the methods of classical Hamiltonian mechanics can be profitably used to solve certain classes of nonlinear partial differential equations. The prototype of these equations is the well-known…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 F. Magri , G. Falqui , M. Pedroni

In this letter, for the discrete parity-time-symmetric nonlocal nonlinear Schr\"{o}dinger equation, we construct the Darboux transformation, which provides an algebraic iterative algorithm to obtain a series of analytic solutions from a…

Exactly Solvable and Integrable Systems · Physics 2016-11-02 Tao Xu , Hengji Li , Hongjun Zhang , Min Li , Sha Lan

Integrable models of resonant interaction of two or more waves in 1+1 dimensions are known to be of applicative interest in several areas. Here we consider a system of three coupled wave equations which includes as special cases the vector…

Exactly Solvable and Integrable Systems · Physics 2015-06-16 Antonio Degasperis , Sara Lombardo

In this letter, we study the Alice-Bob peakon system generated from an integrable peakon system through using the strategy of the so-called Alice-Bob non-local KdV approach [13]. Non-local integrable peakon equations are obtained and shown…

Exactly Solvable and Integrable Systems · Physics 2017-11-22 Senyue Lou , Zhijun Qiao

In this article, we derive the Darboux solutions of Ito type coupled KdV equation in Darboux framework which is associated with Hirota Satsuma systems. Then we generalise $N$-fold Darboux transformations in terms of Wronskians. We also…

Exactly Solvable and Integrable Systems · Physics 2023-05-17 Irfan Mahmood , Hira Sohail , Allah Ditta

The nonlocal symmetry of the generalized fifth order KdV equation (FOKdV) is first obtained by using the related Lax pair and then localized in a new enlarged system by introducing some new variables. On this basis, new Backlund…

Exactly Solvable and Integrable Systems · Physics 2016-11-04 Xi-zhong Liu , Jun Yu , Bo Ren

We consider a quasilinear KdV equation that admits compactly supported traveling wave solutions (compactons). This model is one of the most straightforward instances of degenerate dispersion, a phenomenon that appears in a variety of…

Analysis of PDEs · Mathematics 2018-01-03 Pierre Germain , Benjamin Harrop-Griffiths , Jeremy Marzuola

A systematic investigation of the skew-symmetric solutions of the three-dimensional Jacobi equations is presented. As a result, three disjoint and complementary new families of solutions are characterized. Such families are very general,…

Mathematical Physics · Physics 2019-11-05 Benito Hernández-Bermejo

A new system of coupled higher-order nonlinear Schroedinger equations is proposed which passes the Painleve test for integrability well. A Lax pair and a multi-field generalization are obtained for the new system.

Exactly Solvable and Integrable Systems · Physics 2007-05-23 S. Yu. Sakovich , Takayuki Tsuchida