Nj. Huang et Hx. Li, EXISTENCE OF NONOSCILLATORY SOLUTIONS FOR NTH ORDER NONLINEAR NEUTRALFUNCTIONAL-DIFFERENTIAL EQUATIONS, Journal of mathematical analysis and applications, 216(2), 1997, pp. 375-389
In this paper, some existence theorems of nonoscillatory solutions for
nth order nonlinear neutral functional differential equations are obt
ained. Our results extend some known results in recent years. (C) 1997
Academic Press.