Existence and asymptotic behaviour of nonoscillatory solutions of second-order neutral differential equations with “maxima”

Bainov, D.D., V. Petrov and V. Proytcheva, Existence and asymptotic behaviour of nonoscillatory solutions of second order neutral differential equations with “maxima”, Journal of Computational and Applied Mathematics. paper, sufficient conditions for existence of positive and negative solutions of neutral equations with “maxima” are obtained and their asymptotic behaviour is investigated.