摘要
考虑测度链上具有可变时滞的二阶微分方程:(x(t)+p(t)x(g(t)))Δ2+f(t,x(τ(t)))=0的振动性。t∈T,t≥t0,p(t)∈Crd([t0,∞),R+),f∈Crd(R,R),且当u≠0,uf(u)>0。g(t)≤t,τ(t)≤t,τ(t)为递增函数。获得该方程所有解振动的充分条件。
Oscillation of second-order neutral differential equations on measure chains is concerned: (x(t)+p (t)x(g(t) ) )^△2+f(t ,x(T(t) ) )=0. Where t ∈ T,t ≥to,p (t) ∈ Crd( [to, ∞ ) ,R^+) ,f ∈ Crd(R ,R),u ≠0 ,uf(u)〉O, g(t) ≤t, T(t) ≤t,T(t) is increasing. Sufficient conditions of all solutions oscillatory are obtained.
出处
《科学技术与工程》
2007年第4期431-432,共2页
Science Technology and Engineering
基金
湖南省教育厅科研项目(05C581)资助
关键词
测度链
可变时滞
振动
measure chains variable delay oscillation