Year: 2019
Type: article
Abstract: Approximate symmetries for a coupled system of perturbed Korteweg-de Vries equations with small parameters are constructed by applying the method of approximate transformation groups. The optimal system of the presented approximate symmetries and a few approximate invariant solutions to the coupled system are obtained. Moreover, approximate conservation laws are constructed by using the partial Lagrangian method.
Source: Thermal Science
DOI: 10.2298/tsci1904281b
Authors: Yu-Shan Bai, Qi Zhang
Institution: Inner Mongolia University of Technology
Language: English
Topic: Nonlinear Waves and Solitons
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $161
OpenAlex ID: W2972391152