Oscillation criteria for second-order neutral delay differential equations

摘要

New sufficient conditions for oscillation of second-order neutral half-lineardelay differential equations are given. Our results essentially improve, complementand simplify a number of related ones in the literature, especially those from a recentpaper by [R. P. Agarwal, Ch. Zhang, T. Li, Appl. Math. Comput. 274(2016), 178–181]. Anexample illustrates the value of the results obtained.