<b>Oscillation Criteria for Delay Neutral Difference Equations with Positive and Negative Coefficients</b> - doi: 10.5269/bspm.v21i1-2.7504

Resumo

This paper is concerned with a class of neutral type difference equations with positive and negative coefficients of the form
\Delta(x_n − r_n x_{n−m)} + p_nx_{n−k} − q_nx_{n−l} = 0, n = 0, 1, 2, ...,
where m, k and l are nonnegative integers, and {pn} , {qn} as well as {rn} are nonnegative real sequences. Novel oscillation criteria for this equation are derived.