摘要
本文考虑方程x′(t)+α(t)x(τ(t))=0(1)x′(t)+α(t)f(x(τ(t)))=0(2)的解的振动性,得出方程振动的充分条件.
The oscillating properties of solutions of the functional differential equation x'(t)+α(t)x(τ(t))=0 (1) x'(t)+a(t)f(x(τ(t))=0 (2) arc considered. Some sufficient conditions are also given to ensure that all solutions of the equation(l) and(2) are oscillatory.
关键词
泛函方程
振荡
滞后型
functional equations
oscillations
retarded type
