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论文摘要

三阶无穷多点边值问题正解的存在性

Positive solutions of third-order ∞-point boundary value problems

作者:高婷(西北师范大学数学与统计学院);韩晓玲(西北师范大学数学与统计学院)

Author:GAO Ting(College of Mathematics and Statistics, Northwest Normal University);HAN Xiao-Ling(College of Mathematics and Statistics, Northwest Normal University)

收稿日期:2015-03-18          年卷(期)页码:2016,53(1):35-41

期刊名称:四川大学学报: 自然科学版

Journal Name:Journal of Sichuan University (Natural Science Edition)

关键字:无穷多点边值问题;特征值;正解;锥拉伸与压缩不动点定理

Key words:∞-point boundary value problems; Eigenvalue; Positive solutions; Krasnoselskii’s fixed point theorem

基金项目:国家自然科学基金

中文摘要

本文研究了三阶微分方程的无穷多点边值问题u'''+ λa(t)f(u) = 0, t ∈ (0,1),u(0) = βu'(0), u(1) =∑αiu(ξi), u'(1) = 0正解的存在性,其中 λ > 0 是一个参数, ξi∈ (0,1), αi∈ [0,+∞], 且满足∑αi>1,0

英文摘要

In this paper, we study the existence of positive solutions to the third-order ∞-point boundary value problem u'''+ λa(t)f(u) = 0, t ∈ (0,1),u(0) = βu'(0), u(1) =∑αiu(ξi), u'(1) = 0,where λ > 0 is a parameter, ξi∈ (0,1), αi∈ [0,+∞], and satisfy ∑αi>1,0

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