本文应用Wiman-valiron理论研究2类非齐次线性微分方程的解的增长性,并由此得到有穷级整函数及其k(≥1)阶导函数具有1个非零公共值的唯一性定理。本文结果改进了R.Brück和杨连中等人的结果。
Based on Wiman-Valiron theory,this paper deals with the growth of solutions of two kinds of non-homogeneous linear differential equations.A theorem on uniqueness of non-constant entire functions sharing a nonzero complex number with their derivatives of k-th order,where k is a positive integer,is proved the results obtained improve those given by R.Br ck,Lian-Zhong Yang,and others.