摘要
对于奇阶中立型方程[x(t) - px(t- τ)](n) + q(t)x(t- σ) = 0,其中q(t) 为τ-周期函数,分别得出了振动与非振动结果,并将所得结果用到方程[x(t) - P(t)x(t- τ)](n) +Q(t)x(t- σ) = 0,其中Q(t) 为渐近周期函数.
Sufficient conditions are obtained respectively for the oscillation and nonoscillation of the odd order neutral equation d n d t n[x(t)-px(t-τ)]+q(t)x(t-σ)=0,where q(t) is a τ periodic function. The results obtained are applied to the neutral equation d n d t n[x(t)-P(t)x(t-τ)]+Q(t)x(t-σ)=0,where Q(t) is an asymptotically periodic function.
出处
《应用数学》
CSCD
1999年第4期131-136,共6页
Mathematica Applicata
关键词
中立型
振动性
非振动性
周期函数
微分方程
Neutral
Oscillation
Nonoscillation
Asymptotically periodic function