一类奇异边值问题正解存在的充分必要条件

徐玉梅;刘立山;张海军

A NECESSARY AND SUFFICIENT CONDITION FOR THE EXISTENCE OF POSITIVE SOLUTIONS TO SINGULAR BOUNDARY VALUE PROBLEMS

Xu Yumei;Liu Lishan;Zhang Haijun

系统科学与数学 . 2005, (5): 599 -607 . DOI: 10.12341/jssms10288