oscillation;
nonoscillation;
Emden-Fowler;
INTEGRAL AVERAGES;
D O I:
10.4153/S0008439519000262
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
We establish new oscillation criteria for nonlinear differential equations of second order. The results here make some improvements of oscillation criteria of Butler, Erbe, and Mingarelli [2], Wong [8, 9], and Philos and Purnaras [6].