摘要
利用NevanLinna的亚纯函数的值分布理论,研究了超越亚纯函数微分多项式的值分布理论,取得以下主要结果:若f(z)是复平面上超越严亚纯函数,m、n和k都是正整数,且n≥2,Qj[f](j=1,2…,m)为f(z)的微分单项式,Q[f]=sum from j=1 to m ()aj(z)Qj[f]为f(z)的拟微分多项式,aj(z)是f(z)的小函数,令F(z)=Q[f](f(k)(z))n-c,则T(T,f(k)≤k+1/n(k=1)/(R,1/Q[F]+(r,1/F)+S(r,f))
In this paper, the value distribution theory of the differential polynomials for the atranscendental meromorphic function was studied by using the value distribution theory for the meromorphic function of Nevanlinna. The results results abtained as folloes: If f (z) was an atranscendental meromorphic function of the complex plane, Qj[f](j=1,2…,m) was the differential monomial off (z) ,f(z)=Q[f]=∑j=1^maj(z)Qj[f] was the quasi-differential polynomials , aj(z)was a small function of , so we canobtain of f(z),[f](f^(k)(z))^n-c,so we canobtain;
T(r,f^(k))≤k+1/n(k+1)(N^-(R,1/Q[F])+N^-(r,1/F)+s(r,f))
基金
贵州省科学技术基金资助项目
项目编号:2010GZ43286
贵州省教育厅科研基金资助项目
项目编号:2007079
毕节地区科学技术基金资助项目[2011]02号
关键词
超越亚函数
值分布
NEVANLINNA
Atranscendental Meromorphic Function
Value Distribution
Nevanlinna Theory