Oscillation of delay difference equation
We introduce some new techniques to analyze generalized characteristic equations to obtain several infinite sum sharp conditions for oscillation of the following delay difference equation: x(n+1) - x(n) + (i=1)Sigma(m) p(i)(n)x(n-ki) = 0, n = 0, 1 , 2,..., where p(i)(n) greater than or equal to 0 and k(i) are positive integers. (C) 1999 Elsevier Science Ltd. All rights reserved.
oscillation delay difference equations nonoscillation