讨论了一类具有定号系数多滞量的超前型泛函微分方程解的振动性,得到方程x′(t)=∑ni=1pi(t)x(t+τi)(t≥t0)振动的"sharp"条件,并通过实例验证了所给结果的有效性.
This paper disuesses oscillations of pre-kind function differentinal equation with cotion,and obtains sharp conditions of equation x′(t)=∑ni=1pi(t)x(t+τi)(t≥t0)The effectiveness is proved by examples.