Normal families of holomorphic functions and multiple values

被引:2
|
作者
Zhao, Lijuan [1 ]
Wu, Xiangzhong [1 ]
机构
[1] Nanjing Normal Univ, Dept Math, Nanjing 210046, Jiangsu, Peoples R China
关键词
holomorphic functions; normal family; multiplicity; MEROMORPHIC FUNCTIONS;
D O I
10.36045/bbms/1347642381
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let F be a family of holomorphic functions defined in D subset of C, and let k, m, n, p be four positive integers with k+p+1/m + p+1/n < 1. Let psi(not equivalent to 0, infinity) be a meromorphic function in D and which has zeros only of multiplicities at most p. Suppose that, for every function f is an element of F, (i) f has zeros only of multiplicities at least m; (ii) all zeros of f((k)) - psi(z) have multiplicities at least n; (iii) all poles of psi have multiplicities at most k, and (iv) psi(z) and f(z) have no common zeros, then F is normal in D.
引用
收藏
页码:535 / 547
页数:13
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