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http://dx.doi.org/10.4134/BKMS.2008.45.2.241

OSCILLATION THEOREMS FOR PERTURBED DIFFERENTIAL EQUATIONS OF SECOND ORDER  

Kim, Rak-Joong (Department of Mathematics Hallym University)
Publication Information
Bulletin of the Korean Mathematical Society / v.45, no.2, 2008 , pp. 241-252 More about this Journal
Abstract
By means of a Riccati transform and averaging technique some oscillation criteria are established for perturbed nonlinear differential equations of second order $(P_1)\;(p(t)x $(P_2)$ and $(P_3)$ satisfying the condition (H). A comparison theorem and examples are given.
Keywords
Riccati transform; oscillatory property; delay differential equation; comparison theorem;
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