Oscillatory Behavior of First Order Neutral Delay Difference Equations
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Keywords:
Oscillation, nonoscillation, neutral, delay difference equationsAbstract
In this paper, we establish some sufficient conditions for the oscillation of all solutions of first order neutral difference equation of the form \begin{equation}\Delta[r(n)(x(n)+p x(n-\tau))]+q(n)x(n-\sigma)=0, \quad n\geq n_0;\tag{$\ast$}\end{equation} where $\left\{r(n)\right\}$, $\left\{q(n)\right\}$ are sequences of positive real numbers, $p$ is a real number, and $\tau$ and $\sigma$ are positive integers. The results proved improve and generalize some of existing results in the literature. Some examples are inserted to illustrate our results.
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