一阶超前类型微分方程解的振动性

OSCILLATORY CRITERIA OF THE SOLUTIONS FOR THE FIRST—ORDER ADVANCED—TYPE DIFFERENTIAL EQUATION

讨论了微分方程y′(t) =q(t)y(σ(t) ) ,σ(t) >t,t≥t0 解的振动性 ,获得了其解振动的几个充分条件 ,这些结果改进了文献

In this paper, oscillation of the solutions of the differential equation in form y′(t)=q(t)y(t(σ)) t<σ(t) t≥t 0 is discussed.Some sufficient conditions on the oscillation of the equation are established and the correspondent conditions in refarence [6] are improved.