Geodesic
Oscillation and asymptotic behaviour of a higher order neutral differential equation with positive and negative coefficients
Electronic journal of differential equations, Tome 2008 (2008)
In this paper, we obtain necessary and sufficient conditions so that every solution of

$ \big(y(t)- p(t) y(r(t))\big)^{(n)}+ q(t)G( y(g(t)))-u(t)H(y(h(t))) = f(t) $

oscillates or tends to zero as $t \to \infty$, where $n$ is an integer $n \geq 2, q>0, u\geq 0$. Both bounded and unbounded solutions are considered in this paper. The results hold also when $u\equiv 0, f(t)\equiv 0$, and $G(u)\equiv u$. This paper extends and generalizes some recent results.
Classification : 34C10, 34C15, 34K40
Keywords: oscillatory solution, neutral differential equation, asymptotic behaviour 
@article{EJDE_2008__2008__a90,
     author = {Karpuz,  Basak and Padhy,  Laxmi Narayan and Rath,  Radhanath},
     title = {Oscillation and asymptotic behaviour of a higher order neutral differential equation with positive and negative coefficients},
     journal = {Electronic journal of differential equations},
     year = {2008},
     volume = {2008},
     zbl = {1171.34043},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2008__2008__a90/}
}
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AU  - Rath,  Radhanath
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%A Rath,  Radhanath
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%J Electronic journal of differential equations
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Karpuz,  Basak; Padhy,  Laxmi Narayan; Rath,  Radhanath. Oscillation and asymptotic behaviour of a higher order neutral differential equation with positive and negative coefficients. Electronic journal of differential equations, Tome 2008 (2008). http://geodesic.mathdoc.fr/item/EJDE_2008__2008__a90/