Construction of invariant solutions and conservation laws to the (2+1)-dimensional integrable coupling of the KdV equation

• Published in: Boundary value problems Vol. 2020; no. 1; pp. 1 - 20
• Main Authors: Gao, Ben, Yin, Qinglian
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 07.11.2020; Hindawi Limited; SpringerOpen
• Subjects: Analysis; Approximations and Expansions; Conservation laws; Coupling; Difference and Functional Equations; Exact solutions; Korteweg-Devries equation; Lie group of symmetry; Mathematics; Mathematics and Statistics; Optimal system; Ordinary Differential Equations; Partial Differential Equations; Shallow water; Tanh method; The ( 2 + 1 ) $(2+1)$ -dimensional integrable coupling of the KdV equation; Wave propagation; The; Conservation laws; Lie group of symmetry; Optimal system; dimensional integrable coupling of the KdV equation; Tanh method
• ISSN: 1687-2770; 1687-2762; 1687-2770
• DOI: 10.1186/s13661-020-01466-6

Under investigation in this paper is the ( 2 + 1 ) -dimensional integrable coupling of the KdV equation which has applications in wave propagation on the surface of shallow water. Firstly, based on the Lie symmetry method, infinitesimal generators and an optimal system of the obtained symmetries are presented. At the same time, new analytical exact solutions are computed through the tanh method. In addition, based on Ibragimov’s approach, conservation laws are established. In the end, the objective figures of the solutions of the coupling of the KdV equation are performed.