摘要
考虑一阶中立型时滞微分方程ddt[y(t)+p(t)y(t-τ)]+Q(t)y(t-σ)=0这里p∈C([t0,∞],R),Q∈C([t0,∞],R+),τ,σ∈R+文章运用先前的结论得到上面方程所有解振动的充分条件,这些条件改进和推进了已有的结果.
Concider the first-order neutral delay differertial equation d/dt[y（t）＋p（t）y（t-τ）]＋Q（t）y（t-σ）=0 where p∈C（[t0,∞],R）,Q∈C（[t0,∞],R^＋）,τ,σ∈R^＋ There establishs sufficient conditions,which improve some old conclusions,for the oscillation of all solutions of the first-order NDDE（1） using the techniques of the Other old conclusions.
出处
《太原师范学院学报（自然科学版）》
2006年第2期11-13,共3页
Journal of Taiyuan Normal University:Natural Science Edition
关键词
中立型时滞微分方程
振动性
最终正解
neutral delay differential equation
oscillation
eventually positive solution
