Sufficient Conditions for the Oscillation of Linear Delay Difference Equations with Oscillating Coefficients1

In this paper sufficient conditions for the oscillation of all solutions of the delay difference equation xn 1 xn pnxn k 0, n 0, 1, 2, . . . , are established, where the coefficient pn itself may be allowed to be oscillatory. We also give an example to demonstrate the advantage of our results