Zheng Fang, Chunhong Li, Chuanzhi Bai
Abstract:
In this paper, we investigate the existence of multiple positive
solutions of the fourth-order four-point boundary-value problems
where
. We show the existence of three
positive solutions by applying the Avery and Peterson fixed point
theorem in a cone, here
may change sign on
.
Submitted September 3, 2008. Published December 3, 2008.
Math Subject Classifications: 34B10, 34B15.
Key Words: Four-point boundary-value problem; positive solution;
fixed point on a cone.
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Zheng Fang School of Science, Jiangnan University Wuxi, Jiangsu 214122, China email: fangzhengm@yahoo.com.cn | |
Chunhong Li Department of Mathematics, Huaiyin Teachers College Huaian, Jiangsi 223300, China email: lichshy2006@126.com | |
Chuanzhi Bai Department of Mathematics, Huaiyin Teachers College Huaian, Jiangsi 223300, China email: czbai8@sohu.com |
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