Some normality criteria of meromorphic functions

被引:25
作者
Zhang, Qingcai [1 ]
机构
[1] Renmin Univ China, Sch Informat, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
normal family; meromorphic function; sharing value;
D O I
10.1080/17476930802124666
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this article, we prove that if F is a family of meromorphic functions in a domain D such that for each pair of functions f and g in F, f(n) f' and g(n) g' share a non-zero value b in D, with n >= 2, then F is normal in D. The result is not true when n = 1.
引用
收藏
页码:791 / 795
页数:5
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