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一类非线性三阶边值问题正解的存在性

Existence of Positive Solutions of a Class of Nonlinear Third Order Boundary Value Problems
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摘要 运用Leray-Schauder不动点定理讨论了三阶常微分方程边值问题{u'''(t)=λa(t)f(u(t)),t∈(0,1)αu'(0)-βu″(0)=0,u(1)=u'(1)=0正解的存在性,其中λ>0是参数,a∈C([0,1],R),f:R+→R连续且f(0)>0,α,β≥0,α+β>0. The author studied the existence of positive solutions of a class of nonlinear third order ordinary differential equation u?(t) =λa(t)f(u(t)),t∈(0,1)αu′(0) -βu″(0) =0,u(1) =u′(1) =0 whereλ〉0 is a parameter and a∈C([0,1],R),f:R+→R , is continuous and f(0) 〉0 α,β≥0,α+β〉0 .Our approach is based on the Leray -Schauder fixed point theorem .
作者 王晓燕 张莉
出处 《佳木斯大学学报(自然科学版)》 CAS 2014年第1期153-155,共3页 Journal of Jiamusi University:Natural Science Edition
基金 兰州工业学院校级科技计划项目(10K-015)
关键词 三阶边值问题 Leray—Schauder不动点定理 正解 third order boundary value problem Leray - Schauder fixed point theorem positive solution
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参考文献7

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