Water waves, nonlinear Schrödinger equations and their solutions

Rogue waves and rational solutions of the nonlinear Schrödinger equation.

We present a method for finding the hierarchy of rational solutions of the self-focusing nonlinear Schrödinger equation and present explicit forms for these solutions from first to fourth order. We also explain their relation to the highest amplitude part of a field that starts with a plane wave perturbed by random small amplitude radiation waves. Our work can elucidate the appearance of rogue ...

Of Nonlinear Schrödinger Equations

The authors suggest a new powerful tool for solving group classification problems, that is applied to obtaining the complete group classification in the class of nonlinear Schrödinger equations of the form iψt +∆ψ + F (ψ,ψ ∗) = 0.

Nonlinear Integral Equations and Their Solutions

Dr. Barbara Zubik-Kowal Department of Mathematics Bachelor of Science in Applied Mathematics Nonlinear Integral Equations and Their Solutions by Caleb RICHARDS We shall investigate nonlinear integral equations and their properties and solutions. Proofs and examples for the existence of unique solutions to nonlinear integral equations are provided. Some other areas explored are properties of sol...

Stability and Evolution of Solitary Waves in Perturbed Generalized Nonlinear Schrödinger Equations

In this paper, we study the stability and evolution of solitary waves in perturbed generalized nonlinear Schrödinger (NLS) equations. Our method is based on the completeness of the bounded eigenstates of the associated linear operator in L2 space and a standard multiple-scale perturbation technique. Unlike the adiabatic perturbation method, our method details all instability mechanisms caused b...

On Nonlinear Water Waves in a Channel