On the asymptotic behavior of solutions of a second order nonlinear neutral delay differential equation

Qualitative properties of the solutions of first and higher order neutral delay differential equations, i.e., equations in which the highest order derivative of the unknown function appears both with and without delays, have been studied by several authors in recent years. For discussions of the existence and uniqueness of solutions and some applications of these equations, in addition to how the behavior of their solutions differs from the behavior of solutions of delay equations, the reader is referred to [l-19]. In this paper we study asymptotic properties of the solutions of the second order nonlinear neutral delay differential equation

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