摘要
本文提出一种新的描述常微分方程右端项非线性的方法，得到了Ｂａｎａｃｈ空间 Ｓｔｕｒｍ－Ｌｉｏｕｖｉｌｌｅ问题正解的存在性．
A new method to describe the nonlinearity of the righthand term of ordinary differential equations is given. The existence of positive solutions for nonlinear Sturm-Liouville problems in Banach spaces is obtained.
基金
国家自然科学基金资助项目(10071052)
