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Zbl 1203.34104
Han, Zhenlai; Li, Tongxing; Sun, Shurong; Chen, Weisong
Oscillation criteria for second-order nonlinear neutral delay differential equations.
(English)
[J] Adv. Difference Equ. 2010, Article ID 763278, 23 p. (2010). ISSN 1687-1847/e

Summary: Some sufficient conditions are established for the oscillation of second-order neutral differential equation $(x(t)+p(t)x(\tau(t)))''+q(t)f(x(\sigma(t)))=0$, $t\ge t_0$, where $0\le p(t)\le p_0<+\infty$. The results complement and improve known results.
MSC 2000:
*34K11 Oscillation theory of functional-differential equations
34K40 Neutral equations

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