New oscillation criteria for delay difference equations
Sufficient conditions are given for the oscillatory behaviour of the solutions of \[ x_{n+1}- x_n+p_nx_{n-k} =0 \] with \(p_n\geq 0\), \(k>0\) (integer) and \[ x_{n+1}- x_n+\sum^m_1 p_i(n)x_{n-k_i} =0 \] with \(p_i(n)\geq 0\) and \(k_i\) positive integers.
scientific article; zbMATH DE number 1787767
scientific article