Oscillation criteria for first order nonlinear delay difference equations

摘要

In this paper, two interesting oscillation criteria are obtained for all solutions of the nonlinear delay difference equation of the formxn+1−xn+pnf(xn−l1,xn−l2,…,xn−lm)=0,n=0,1,2,…The results extend some well-known results in the literature. And two examples are given to demonstrate the advantage of our results.