期刊论文详细信息
Boundary value problems | |
Existence of positive periodic solutions of second-order differential equations with weak singularities | |
You Ma1  | |
[1] School of Mathematical Sciences, Beijing Normal University, Beijing, P.R. China | |
关键词: periodic solution; weak singularity; Schauderâs fixed point theorem; indefinite weight; | |
DOI : 10.1186/s13661-014-0188-1 | |
学科分类:数学(综合) | |
来源: SpringerOpen | |