Some Results On Distrubition Theorems And Normality Of Meromorphic Functions

In the dissertation, we do a further study in value distribution theorem and normal families theorem of meromorphic function and get some results by using the Nevanlinna's value distribution and the Ahlfors value distribution. In value distribution theorem we study a problem on Hayman's conjecture. In normal families theorem, we study normality of meromorphic function on shanging value. The results obtained in the dissertation perfect and generalize the present conclusions.