研究了亚纯函数及其导数分担一个公共值的惟一性问题,所得结果推广了Fang M,Yang C以及Xu Y等人的.相关定理.
The uniqueness of derivatives of meromorphic functions sharing one common value was discussed. Some results obtained extend and improve the theorems given by Fang M, Yang C and Xu Y, et al.