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Oscillation of third-order nonlinear delay differential equations. (English) Zbl 1286.34099

The authors consider the third order nonlinear differential equation \[ (a(t)(b(t)y'(t))')'+q(t)y^{\gamma}(\tau(t))=0 \] to develop some oscillation criteria. These results are achieved by transforming this equation into a first order delayed and advanced differential equation. Two examples along with a corollary are given for these new results.

MSC:

34K11 Oscillation theory of functional-differential equations
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