Neutral delay differential equations with positive and negative coefficients
Kate Farrell, E.A. Grove, Gerasimos Ladas · Applicable Analysis · 1988
Consider the neutral delay differential equation [display math001] where [display math002] We studied the asymptotic behavior of the nonoscillatory solutions of Eq. (1) and we obtained sufficient conditions for the oscillation of all solutions, all bounded solutions, and all unbounded solutions of Eq. (1)