二阶时滞微分方程周期边值问题

The Periodic Boundary Value Problems for Second Order Delay Differencial Equations

本文讨论如下方程-x″+a(t)x(t)=f(t,x(t),x(α(t))),t∈J=[0,T]x(0)=x(T),x′(0)=x′(T)多重正解的存在性.所得结果推广了已有文献中的结果。

This paper studied the existence of positive solutions to the second order delay differencial equation {-x＂＋a（t）x（t）=f（t,x（t）,x（a（t）））,t∈J=[0,T]x（0）=x（T）,x＇（0）=x＇（T） which generalize the exist results in the literature.