Uniqueness Of MEromorphic Function Concerning Its Derivative

This thesis study the uniqueness theory of meromorphic functions.With the theory of Nevanlinna'svalue distribution ,the authoranalyzeandstudy the unique problemsabout Meromorphic function and its derivative or differential polynomial shared values,two meromorphic functions shared one value,the derivatives of meromorphic functionsshared one value or small function, the derivatives of meromorphic functions sharedone set.proved several uniqueness theorem,which generalized and improved the results of Qiu Gandi,Brosch, Yi Hongxun, C.C.Yang and Wu Guirong,...