On the hyper exponent of convergence of zeros of f(j) - φ of higher order linear differential equations

被引:6
作者
Xu, Hong-Yan [1 ]
Tu, Jin [2 ]
Zheng, Xiu-Min [2 ]
机构
[1] Jingdezhen Ceram Inst, Dept Informat & Engn, Jingdezhen 333403, Jiangxi, Peoples R China
[2] Jiangxi Normal Univ, Inst Math & Informat, Nanchang 330022, Jiangxi, Peoples R China
关键词
linear differential equation; hyper order; type; small function; MEROMORPHIC SOLUTIONS; OSCILLATION-THEORY; GROWTH;
D O I
10.1186/1687-1847-2012-114
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we deal with the relationship between the small function and the derivative of solutions of higher order linear differential equations f((k)) + A(k-1)f((k-1)) + ... + A(0)f = 0 ( k >= 2), where A(j)(z) (j = 0,1, ... , k - 1) are entire functions or meromorphic functions. The theorems of this paper improve the previous results given by Chen, Belaidi, Liu.
引用
收藏
页数:16
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