Exact solutions of a (2+1)-dimensional extended shallow water wave equation
Yuan Feng1, He Jing-Song2, †, Cheng Yi1
       

Three-soliton with α=1, t = 0, k 1 = − 3 / 4 , k 2 = − 1 / 2 , k 3 = 1 / 3 , p 1 = 2 / 3 , p 2 = 3 / 5 , p 3 = 1 / 2 , η 1 0 = 10 , η 2 0 = − 8 , η 3 0 = 0 . (a) Mixed soliton v [ 3 ] ; (b) Dark soliton r [ 3 ] .