New explicit exact solutions for the generalized coupled Hirota-Satsuma KdV system

In this paper, we study the generalized coupled Hirota-Satsuma KdV system by using the two new improved projective Riccati equations method. As a result, many explicit exact solutions, which contain new solitary wave solutions, periodic wave solutions and combined formal solitary wave solutions and combined formal periodic wave solutions are obtained. (c) 2007 Published by Elsevier Ltd.