摘要:
本文利用 Leray-Schauder 抉择和 Banach 压缩映像原理研究了二阶微分系统

正解的存在唯一性, 其中f,g : [0,1] × [0,+∞) × [0,+∞) → [0,+∞) 连续.
Abstract:
In this paper, by using Leray-Schauder’s alternative and contraction mapping principle to study the positive solutions for a system of second-order boundary value problems

where f,g : [0,1] × [0,+∞) × [0,+∞) → [0,+∞) are continuous.