Some Problemes Of Normal Families And Unicity Of Meromorphic Functions

By using the Nevanlinna's value distribution theory, this thesis studies the problems of the normal families and uniqueness of meromorphic functions in several aspects. With regard to normal families of meromorphic functions, the author obtains a series of normal criterias with improved the results of Fang Mingliang and Pang Xuecheng; With regard to uniqueness, the author improved the results of Yang Le ,Yi Hongxun and Fang Mingliang,and obtains a series of uniqueness theories.