A SIMPLE JUSTIFICATION OF TANH METHOD FOR DISCRETE SOLITARY WAVE SOLUTIONS

Autor: Ahmad Syarif, Mahdhivan Syafwan, Admi Nazra
Jazyk: English<br />Indonesian
Rok vydání: 2024
Předmět:
Zdroj: Jurnal Lebesgue, Vol 5, Iss 2, Pp 1060-1065 (2024)
Druh dokumentu: article
ISSN: 2721-8929
2721-8937
DOI: 10.46306/lb.v5i2.646
Popis: The tanh method is known as an effective method for solving partial differential equations and obtaining traveling wave solutions. While well-used in continuous systems, its application to discrete systems (nonlinear difference-differential equations, DDEs) is still less explored. This paper revisits the tanh method for discrete systems, providing a simple justification for the method to produce discrete solitary wave solutions, including pulse-type and (anti)kink-type. By transforming DDEs into nonlinear ordinary differential equations (ODEs) and using polynomial forms in terms of the tanh function, we outline steps for deriving and verifying exact solutions
Databáze: Directory of Open Access Journals