东北数学（英文版）
東北數學（英文版）
동북수학（영문판）
NORTHEASTERN MATHEMATICAL JOURNAL
2008年
4期
319-328
,共10页
孙忠民%王增桂%任锁全
孫忠民%王增桂%任鎖全
손충민%왕증계%임쇄전
positive periodic solution%functional differential equation%fixed point theorem for cone map
In this paper,we investigate the existence of multiple positive periodic solutions for functional differential equations with infinite delay by applying the Kras-noselgkii fixed point theorem for cone map and the Leggett-Williams fixed point theorem.
