UNIQUENESS OF MEROMORPHIC FUNCTIONS CONCERNING SHARING TWO SMALL FUNCTIONS WITH THEIR DERIVATIVES

被引：1
|
作者：
Ma, Linke [1 ]
Liu, Dan [1 ]
Fang, Mingliang [1 ]
机构：
[1] South China Agr Univ, Inst Appl Math, Guangzhou 510642, Peoples R China
来源：
JOURNAL OF APPLIED ANALYSIS AND COMPUTATION | 2020年 / 10卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Meromorphic functions; shared small functions; derivatives; VALUES;
D O I：
10.11948/20190115
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper, we study the uniqueness of meromorphic functions that share two small functions with their derivatives. We prove the following result: Let f be a nonconstant meromorphic function such that (lim(r ->infinity)) over bar (N) over bar (r, f)/T (r, f) < 3/128, and let a, b be two distinct small functions of f with a not equivalent to infinity and b not equivalent to infinity. If f and f' share a and b IM, then f equivalent to f'.
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页码：713 / 728
页数：16
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