The dromion of the Davey-Stewartson-1 equation is studied under perturbation on the large time.

The perturbation of the dromion of the Davey-Stewartson-1 equation is studied over the large time.

In this letter, we report the existence of a novel type of explode-decay dromions, which are exponentially localized coherent structures whose amplitude varies with time, through Hirota method for a nonisospectral Davey-Stewartson equation I discussed recently by Jiang. Using suitable transformations, we also point out such solutions also exist for the isospectral Davey-Stewartson I equation it...

Rigorous Melnikov analysis is accomplished for Davey–Stewartson II equation under singular perturbation. Unstable fiber theorem and center-stable manifold theorem are established. The fact that the unperturbed homoclinic orbit, obtained via a Darboux transformation, is a classical solution, leads to the conclusion that only local well posedness is necessary for such a Melnikov analysis. The mai...

The variational iteration method (VIM) proposed by Ji-Haun He is a new analytical method tosolve linear and nonlinear equation. In this paper, the Variational Iteration Method (VIM) has been applied for solving Davey-Stewartson equations which arise as higher dimensional generalizations of the Nonlinear Shrodinger (NLS) equation, as well as from physical considerations [1]. Comparison the absol...

We used what we called extended Fan’s sub-equation method and a new compound Riccati equations rational expansion method to construct the exact travelling wave solutions of the Davey-Stewartson DS equations. The basic idea of the proposed extended Fan’s subequation method is to take fulls advantage of the general elliptic equations, involving five parameters, which have many new solutions and w...

The Moutard transform is constructed for the solutions of Davey-Stewartson II equation. It geometrically interpreted using spinor (Weierstrass) representation surfaces in four-dimensional Euclidean space. Using transformation and minimal surfaces, examples are that have smooth, rapidly decreasing initial data lose their regularity a finite time.

Based on work related to the R-matrix theory, we first abstract Lax pairs proposed by Blaszak and Sergyeyev into a unified form. Then, generalized zero-curvature equation expressed Poisson bracket is exhibited. As an application of this (2+1)-dimensional integrable system obtained, from which resulting Davey–Stewartson (DS) Pavlov (gPe) are further obtained. Via use nonisospectral zero-curvatur...

A new (scalar) spectral decomposition is found for the Dirac system in two dimensions associated to the focusing Davey–Stewartson II (DSII) equation. Discrete spectrum in the spectral problem corresponds to eigenvalues embedded into a two-dimensional essential spectrum. We show that these embedded eigenvalues are structurally unstable under small variations of the initial data. This instability...

This article aims to examine M-truncated soliton solutions of the fractional (4+1)-dimensional Fokas equation (FE), which is a generalization Kadomtsev-Petviashvili (KP) and Davey-Stewartson (DS) equations. The (4+1)$-dimensional with derivatives also studied first time in this study. generalized projective Riccati equations method (GPREM) successfully implemented. In application presented meth...