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Zbl 1093.34552
Çakmak, D.; Tiryaki, A.
Oscillation criteria for certain forced second-order nonlinear differential equations with delayed argument.
(English)
[J] Comput. Math. Appl. 49, No. 11-12, 1647-1653 (2005). ISSN 0898-1221

From the summary: Some new sufficient conditions for oscillation criteria are given for forced second-order nonlinear differential equations with delayed argument in the form $$x''(t)+q(t)f(x(\tau(t)))= e(t).$$ The results are based on the information only on a sequence of subintervals of $[t_0,\infty)$ rather than on the whole half-line.
MSC 2000:
*34K11 Oscillation theory of functional-differential equations

Keywords: oscillation; second order; forced term; nonlinear differential equations; delayed argument

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