Dynamics of the breather and solitary waves in plasma using the generalized variable coefficient Gardner equation

Abstract

This paper presents an analytical approach to study the generalized variable coefficient Gardner equation, aiming to investigate the behaviour of plasma phenomena, which presents challenges due to the non-linear nature of the Gardner equation. The point symmetry group associated with the proposed equation is determined by Lie symmetry analysis. The Exp-function method is employed to construct exact travelling wave solutions and to obtain anomalous solutions with non-zero amplitude. Additionally, conservation laws are derived and analysed from the equation in the frame of Noether symmetry. Through simulation, breather, periodic, and localized solitary wave solutions are also presented in graphical form. Our results are expected to elucidate the impact of the equation in the study of the propagation of Alfvén waves with non-uniform density, temperature, and wave-particle interactions in a magnetized plasma.

Keywords:

• Generalized Gardner equation
• similarity transformation method
• Exp-function method
• soliton
• conservation law

AMS Subject Classifications:

• 76M60
• 37K05
• 35B06
• 35C08
• 35G50

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability

The authors affirm that the data supporting the findings are available within the article; the manuscript contains no accompanying data.