Some generally Riccati type difference inequalities are given for the second order nonlinear difference equations with negative neutral termwhere A is the forward difference operator, p > 0, r is a positive integer, {an}is a sequence of positive numbers with , {an} is a nondecreasingsequence of positive integer with an < n and is a continue function about u and there exists a sequence {qn} which satisfies > 0 for u 0. Using these inequalities and some new techniques, obtain some oscillation results for the above equation.
|