New exact solutions of the (3+1)-dimensional Burgers system

With the help of exp-function method, we obtain some new exact solutions of the Riccati equation. Based on the Riccati equation and its new exact solutions, we find new and more general exact solutions with two arbitrary functions of the (3+1)-dimensional Burgers system. As some special examples, these new exact solutions can degenerate into variable separation solutions reported in open literatures