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一类四阶奇异边值问题的正解存在的充分必要条件
A necessary and sufficient condition for the existence of positive solutions to a class of singular boundary value problems of fourth order differential equations
【摘要】 利用上下解方法和极大值原理给出了一般边界条件下四阶微分方程的奇异边值问题有 C2 [0 ,1 ]和 C3[0 ,1 ]正解存在的充分必要条件 .推广了韦忠礼( 1 999)的结果
【Abstract】 This paper studies the existence of positive solutions to singular boundary value problems of fourth order differential equations.A necessary and sufficient condition for the existence of C 2[0,1],as well as C 3[0,1],positive solutions is given by the method of lower and upper solutions,and by the maximum principle.
【关键词】 次线性;
四阶奇异边值问题;
正解;
【Key words】 fourth order singular boundary value problem; sublinear; positive solution;
【Key words】 fourth order singular boundary value problem; sublinear; positive solution;
【基金】 山东省自然科学基金 (Y2 0 0 0 A0 6 )
- 【文献出处】 高校应用数学学报A辑(中文版) ,Applied Mathematics A Journal of Chinese Universities , 编辑部邮箱 ,2003年02期
- 【分类号】O175.8
- 【被引频次】5
- 【下载频次】69