Oscillation criteria for nth-order nonlinear delay differential equations with a middle term

被引：5
|
作者：
Grace, S. R. [1 ]
Zafer, A. [2 ]
机构：
[1] Cairo Univ, Fac Engn, Dept Engn Math, Giza 12221, Egypt
[2] Amer Univ Middle East, Coll Engn & Technol, Dept Math & Stat, Eqaila, Kuwait
来源：
MATHEMATICAL METHODS IN THE APPLIED SCIENCES | 2016年 / 39卷 / 05期
关键词：
oscillation; nth-order; delay differential equation; comparison; DEVIATING ARGUMENTS;
D O I：
10.1002/mma.3559
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this article, we establish some new criteria for the oscillation of nth-order nonlinear delay differential equations of the form (r(2)(t) (r(1)(t) (y((n-2))(t)(alpha))')' + p(t) (y((n-2))(t))(alpha) + q(t)f(y(g(t))) = 0, n even, provided that the second-order equation (r(2)(t)z')' + p(t)/r(1)(t)z = 0 is either nonoscillatory or oscillatory. Examples are given to illustrate the results. Copyright (C) 2015 John Wiley & Sons, Ltd.
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页码：1150 / 1158
页数：9
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