Mp. Chen et al., OSCILLATION IN NEUTRAL DELAY DIFFERENCE-EQUATIONS WITH VARIABLE-COEFFICIENTS, Computers & mathematics with applications, 29(3), 1995, pp. 5-11
In this paper, we consider the neutral delay difference equation DELTA
(y(n) - P(n)Y(n-k) + q(n)y(n-e) = 0, n = 0, 1, 2, ... (1) where p(n),
q(n) (n = 0, 1, 2,...) are real numbers with p(n) greater-than-or-equa
l-to 0, q(n) greater-than-or-equal-to 0, k and e are nonnegative integ
ers. We establish some sufficient conditions for the oscillation of al
l solutions of (1) without the condition [GRAPHICS]