摘要
设f(z)是非常数亚纯函数,n是正整数,F(z)=,其中aj(z)(j=0,1,2,…,n)均是f(z)的小函数.本文证明了:若f(z)满足N(r,f)=s(r,f),且f(z)=b1(z)F(z)=b2(z),这里b1(z)、b2(z)为f(z)的小函数,b1(z)0,b2(z)0,δ(0,f)>,则或者f·Fb1·b2.
The paper proves the following theorem:Let f be a nonconstant meromorphic function,n be a posi-tive integer. F(z) =(z)f(j) (z), where aj (z) (j=0,1, 2, …, n ) are small functions related to f. We sup-pose that b1 (z),b2 (z) are two small functions related to f and b10,b20. If N(r,f) =s(r,f),f(z) =b1 (z)
出处
《数学理论与应用》
2000年第1期30-32,共3页
Mathematical Theory and Applications
关键词
亚纯函数
亏量
零点
唯一性
Meromorphic function, Deficient Value, Zero point, Uniqueness