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Oscillation criteria for second-order nonlinear differential equations with integrable coefficient. (English) Zbl 0971.34021

The authors consider the second-order nonlinear differential equation \[ \left[a(t)|y'(t)|^{\sigma-1}y'(t)\right]'+q(t)f(y(t))=r(t), \] where \(\sigma>0\) is a constant, \(a\in C(\mathbb{R}, (0, \infty))\), \(q\in C(\mathbb{R}, \mathbb{R})\), \(xf(x)>0\), \(f'(x)\geq 0\) for \(x\neq 0\). Some new oscillation criteria are obtained and an example is given.

MSC:

34C15 Nonlinear oscillations and coupled oscillators for ordinary differential equations
34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations
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References:

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