Lie Symmetries and Solutions of KdV Equation

TL;DR

This paper explores the symmetries of the KdV equation using the Harrison method and introduces a first integral method for finding solutions, enhancing understanding of its mathematical structure and solutions.

Contribution

It presents a detailed application of the Harrison method to find symmetries of the KdV equation and introduces a new solution-finding approach called the first integral method.

Findings

Identification of symmetries of the KdV equation using Harrison method

Development of the first integral method for solutions

Enhanced understanding of KdV equation solutions

Abstract

Symmetries of a differential equations is one of the most important concepts in theory of differential equations and physics. One of the most prominent equations is KdV (Kortwege-de Vries) equation with application in shallow water theory. In this paper we are going to explain a particular method for finding symmetries of KdV equation, which is called Harrison method. Our tools in this method are Lie derivatives and differential forms, which will be discussed in the first section more precisely. In second chapter we will have some analysis on the solutions of KdV equation and we give a method, which is called first integral method for finding the solutions of KdV equation.