second differential equations;
delay argument;
monotonic properties;
oscillation;
EVEN;
D O I:
10.3390/math13010049
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
The purpose of this paper is to give new oscillation criteria for second-order delay differential equations y ''(t)=p(t)y(tau(t)). We introduce a new technique for the elimination of bounded nonoscillatory solutions.