Journal of Ocean Engineering and Science ›› 2024, Vol. 9 ›› Issue (2): 178-190. doi: 10.1016/j.joes.2022.04.035

• Research article • Previous Articles    

Symmetries, optimal system, exact and soliton solutions of (3+1 )-dimensional Gardner-KP equation

Amjad Hussaina(), Ashreen Anjuma, M. Junaid-U-Rehmana(), Ilyas Khanb(), Mariam A. Samehc(), Amnah S. Al-Johanid()   

  1. a Department of Mathematics, Quaid-I-Azam University 45320, Islamabad 44000, Pakistan
    b Department of Mathematics, College of Science Al-Zulfi, Majmaah University, Al-Majmaah, P.O Box 66, Majmaah 11952, Saudi Arabia
    c Electrical Engineering Department, Faculty of Engineering and Technology, Future University in Egypt, New Cairo 11845, Egypt
    d Mathematics Department, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
  • Received:2022-03-28 Revised:2022-04-25 Accepted:2022-04-28 Online:2022-05-19 Published:2022-05-19
  • Contact: Amjad Hussain, M. Junaid-U-Rehman, Ilyas Khan, Mariam A. Sameh, Amnah S. Al-Johani

Abstract:

In this research article, the (3+1 )-dimensional nonlinear Gardner-Kadomtsov-Petviashvili (Gardner-KP) equation which depicts the nonlinear modulation of periodic waves, is analyzed through the Lie group-theoretic technique. Considering the Lie invariance condition, we find the symmetry generators. The proposed model yields eight-dimensional Lie algebra. Moreover, an optimal system of sub-algebras is computed, and similarity reductions are made. The considered nonlinear partial differential equation is reduced into ordinary differential equations (ODEs) by utilizing the similarity transformation method (STM), which has the benefit of yielding a large number of accurate traveling wave solutions. These ODEs are further solved to get closed-form solutions of the Gardner-KP equation in some cases, while in other cases, we use the new auxiliary equation method to get its soliton solutions. The evolution profiles of the obtained solutions are examined graphically under the appropriate selection of arbitrary parameters.

Highlights

● Lie symmetry analysis of (3+1) -dimensional Gardner-KP equation: weakly nonlinear, dispersive surface waves propagating near-critical depth levels.

● Optimal system of sub-algebras.

● Exact and soliton solutions.

Key words: Gardner-KP equation, Lie symmetry analysis, Optimal system, New auxiliary equation method, Solitary wave solutions