二阶泛函微分方程边值问题正解的存在性

Existence of Positive Solutions for Boundary Value Problems of Second Order Functional Differential Equations with Delay

应用Schauder不动点定理讨论一类二阶泛函微分方程边值问题正解的存在性,所得的结果放宽了已有文献中的条件:A≥φ(0),1/2≤T<6^(1/2).结论简单,易于验证,并给出应用举例的验证结果.

Discusses the existence of positive solutions for boundary value problems of second order functional differential equations by applying Scbauder＇s fixd point theorem. To ensure the existence of positive solution, some sufficient conditions are provided without the hypothesis： A≥φ（0）,1/2≤T√6, which are necessaug in the published literature.