CHARACTERISTIC OF COMPOSITION MEROMORPHIC FUNCTIONS WITH DEFICIENT FUNCTIONS

摘要

In this paper, we obtain the following result: Let f(z) be a meromorphic function of order p and lower order λ，let ai(z)(i=1,2,…n，n≤∞）be entire function, which satisying T（r，ai(z)=o(T(r,f)) with ∑i=1^n δ（ai(z),f)=1 and δ（ai(z),f)>0(ai(z)≠∞）.If lim r→∞ T（r，f(z+1))/T(r,f(z))=∞ then p=λ=∞.We solved problem due to C. C. yang concerning the characteristic functions of the composite functions.