摘要
We study a class of boundary value problems with equation of the form x″(t) + f(t, x(t), x′(t - τ)) = 0. Some sufficient conditions for existence of positive solution are obtained by using the Krasnoselskii fixed point theorem in cones.
| 源语言 | 英语 |
|---|---|
| 文章编号 | 382392 |
| 期刊 | Journal of Applied Mathematics |
| 卷 | 2012 |
| DOI | |
| 出版状态 | 已出版 - 2012 |