摘要
The problem of the number of meromorphic solutions for the differential equation has attracted many authors’ attention all along. It is well known that for n=2, i. e. Riccati Eq.(1) can possess a family of meromorphic solutions of one complex parameter. But for n≥3 and {P_k(z)} to be polynomials, recently G. Gundersen and I. Laine showed