A (2+1)-dimensional combined KdV-mKdV equation: integrability, stability analysis and soliton solutions

被引:30
作者
Malik, Sandeep [1 ]
Kumar, Sachin [1 ]
Das, Amiya [2 ]
机构
[1] Cent Univ Punjab, Dept Math & Stat, Bathinda 151401, Punjab, India
[2] Univ Kalyani, Dept Math, Kalyani 741235, W Bengal, India
关键词
Combined KdV-mKdV equation; Painleve analysis; Phase plane theory; Soliton solutions; INVARIANT SOLUTIONS; WAVE SOLUTIONS; NONLINEARITY;
D O I
10.1007/s11071-021-07075-x
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this study, the (2+1)-dimensional combined Korteweg-de Vries and modified Korteweg-de Vries equation has been considered for the first time. Firstly, we check the integrability of the governing equation. Then, we generate Lie symmetries, and with the help of corresponding transformations, the governing equation has been reduced to ordinary differential equations. Further, we have constructed the dark, bright, singular and combo bright-singular soliton solutions via different techniques. The hyperbolic function method, the Kudryashov method and a new version of Kudryashov method are among these techniques. Moreover, by using phase plane theory, we investigate the stability of the corresponding dynamical system.
引用
收藏
页码:2689 / 2701
页数:13
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