Wang, Qiru Interval criteria for oscillation of certain second-order nonlinear differential equations. (English) Zbl 1087.34015 Dyn. Contin. Discrete Impuls. Syst., Ser. A, Math. Anal. 12, No. 6, 769-781 (2005). Summary: By employing a generalized Riccati technique and an integral averaging technique, new interval oscillation criteria are established for second-order nonlinear differential equations of the form \((r(t)y'(t))'+ Q(t,y(t)\), \(y'(t))=0\). Cited in 10 Documents MSC: 34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations Keywords:interval averaging technique; generalized Riccati technique PDFBibTeX XMLCite \textit{Q. Wang}, Dyn. Contin. Discrete Impuls. Syst., Ser. A, Math. Anal. 12, No. 6, 769--781 (2005; Zbl 1087.34015)