一类三阶三点边值问题正解的存在性 |
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引用本文: | 吕学哲,裴明鹤.一类三阶三点边值问题正解的存在性[J].吉林林学院学报,2014(5):577-580. |
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作者姓名: | 吕学哲 裴明鹤 |
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作者单位: | 北华大学数学与统计学院,吉林吉林132033 |
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基金项目: | 国家自然科学基金青年项目(11201008) |
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摘 要: | 研究具有非齐次三点边界条件的三阶三点边值问题u^m+a(t)f(u(t))=0,t∈(0,1),u(0)=u'(0)=0,u'(1)-αu'(η)=λ正解的存在性,其中0〈α〈1,0〈η〈1,f:0,+∞)→0,+∞)连续,a:0,1]→0,+∞)连续,λ〉0为参数.主要利用Schauder不动点定理给出了上述三阶三点边值问题存在正解的充分条件.
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关 键 词: | 三阶三点边值问题 Schauder不动点定理 正解 |
Existence of Positive Solutions of a Class Third-Order Three-Point Boundary Value Problem |
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Authors: | Lv Xuezhe Pei Minghe |
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Institution: | ( School of Mathematics and Statistics,Beihua University, Jilin 132033, China) |
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Abstract: | The existence of positive solutions for a third-order three-point boundary value problem with nonhomogenous three-point boundary conditions of the form u'''(t) + a(t)f(u(t)) = 0,t∈(0,1),u(0) = u'(0)= 0,u'(1)-αu'(η) = λ is studied,where 0 〈α〈 1,0〈 η〈1,f∈C(0,+∞),0,+∞)),a∈C(0,1],0,+∞) and λ〉 0 is a parameter. The sufficient conditions for the existence of positive solutions to this problem were obtained by using Schauder fixed point theorem. |
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Keywords: | third-order three-point boundary value problem Schauder fixed point theorem positive solution |
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