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On Kamenev-type oscillation theorems for second-order differential equations with damping. (English) Zbl 0987.34024
This is an interesting paper dealing with oscillation criteria for nonlinear second-order ordinary differential equations with damping. The results of this paper improve a few Kamenev-type oscillation theorems. The methodology of this paper is stimulating and is different from that of many previous papers of this kind. The author provides a more unified approach for the study of Kamenev-type oscillation theorems. Three examples are given. They are new and not covered by any of the known results.

##### MSC:
 34C10 Qualitative theory of oscillations of ODE: zeros, disconjugacy and comparison theory 34K11 Oscillation theory of functional-differential equations
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##### References:
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