Some Results Of Uniqueness Theory Of Meromorphic Functions

The relevant questions of the uniqueness theory of meromorphic functions are studied by Nevanlinna value distribution theory and the value distribution theory of angular domain.Several results of uniqueness of meromorphic functions in an angular domain are obtained,and uniqueness theory of nonlinear differential polynomials of meromorphic functions are studied by sharing small functions.The relevant knowledge and notations concering the uniqueness theory of meromorphic functions are introduced in the charpter 1.The angular uniqueness about two meromorphic functions to share the 6)many values and the small function is introduced in the charpter 2.The uniqueness of the weighted sharing small function of nonlinear differential polynomials of two meromorphic functions is introduced in the charpter 3.