Title: Soliton solutions of a coupled Ramani equation
Abstract: In this work, multi-soliton solutions of the coupled Ramani equations u x x x x x x + 15 u x x u x x x + 15 u x u x x x x + 45 u x 2 u x x − 5 ( u x x x t + 3 u x x u t + 3 u x u x t ) − 5 u t t + 18 w x = 0 , w t − w x x x − 3 w x u x − 3 w u x x = 0 , are derived and expressed using Pfaffians in a compact form.