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ON THE ZEROS OF SOLUTIONS OF A CLASS OF SECOND ORDER LINEAR DIFFERENTIAL EQUATIONS
被引:3
|作者:
Tu, Jin
[1
]
Yang, Xiang-Dong
[2
]
机构:
[1] Jiangxi Normal Univ, Coll Math & Informat Sci, Nanchang 330022, Peoples R China
[2] Kunming Univ Sci & Technol, Dept Math, Kunming 650093, Peoples R China
关键词:
linear differential equation;
entire function;
zero;
OSCILLATION;
D O I:
10.2996/kmj/1278076341
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
In this paper, we investigate the exponent of convergence of the zero-sequence of solutions of the second order linear differential equation f(n) + (Sigma(l)(j=1) Q(j)(z)e(Pj(z))) f = 0, where P-j(z) (j = 1, 2, ..., l >= 3) are polynomials of degree n >= 1, Q(j)(z) are entire functions of order less than n, and obtain some results which improve and generalize the previous results in [8, 9, 13].
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页码:251 / 266
页数:16
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