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

Two-breather solutions with t = 0, α = − 1 / 2 , a 1 = − 1 / 2 , b 1 = 1 / 3 , c 1 = 1 / 5 , d 1 = 1 / 3 , a 2 = − 1 , b 2 = 1 / 2 , c 2 = 1 / 5 , d 2 = 2 / 3 , η 1 0 = η 2 0 = − 3 , η 3 0 = η 4 0 = 5 . (a) v b [ 2 ] , (b) r b [ 2 ] .