Oscillatory Behavior of Fourth-Order Differential Equations with Neutral Delay

被引：30
|
作者：
Moaaz, Osama [1 ]
El-Nabulsi, Rami Ahmad [2 ,3 ]
Bazighifan, Omar [4 ]
机构：
[1] Mansoura Univ, Fac Sci, Dept Math, Mansoura 35516, Egypt
[2] Athens Inst Educ & Res, Div Math, Athens 10671, Greece
[3] Athens Inst Educ & Res, Div Phys, Athens 10671, Greece
[4] Hadhramout Univ, Fac Sci, Dept Math, Hadhramout 50512, Yemen
来源：
SYMMETRY-BASEL | 2020年 / 12卷 / 03期
关键词：
fourth-order differential equations; neutral delay; oscillation;
D O I：
10.3390/sym12030371
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In this paper, new sufficient conditions for oscillation of fourth-order neutral differential equations are established. One objective of our paper is to further improve and complement some well-known results which were published recently in the literature. Symmetry ideas are often invisible in these studies, but they help us decide the right way to study them, and to show us the correct direction for future developments. An example is given to illustrate the importance of our results.
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页数：8
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