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带非齐次边界条件的二阶常微分方程边值问题正解的存在性
引用本文:谢春杰.带非齐次边界条件的二阶常微分方程边值问题正解的存在性[J].烟台大学学报(自然科学与工程版),2012(4):251-255.
作者姓名:谢春杰
作者单位:西北师范大学数学与统计学院
基金项目:国家自然科学基金资助项目(10671158);甘肃省自然科学基金资助项目(3ZS051-A25-016)
摘    要:运用θ-凸算子理论研究了带非齐次边界条件的二阶常微分方程边值问题(p(t)u'(t))'+h(t)f(u)=0,t∈(0,1),au(0)-bp(0)u'(0)=αu]+λ,cu(1)+dp(1)u'(1)=βu]+{μ正解的存在唯一性,其中:p∈C(0,1],(0,+∞)),h∈C(0,1],0,+∞)),a,b,c,d∈0,+∞)为常数,f∈C(0,+∞),0,+∞)),αu]=∫10u(s)dA(s),βu]=∫10u(s)dB(s),A,B为有界变差函数,λ,μ∈0,+∞)为参数.获得了正解存在唯一的充分条件及其关于参数λ和μ的依赖性.

关 键 词:θ-凸算子  非齐次  唯一解  参数依赖

Existence of Positive Solutions of Boundary Value Problems for Second-Order Ordinary Differential Equations with Nonhomogeneous Boundary Conditions
XIE Chun-jie.Existence of Positive Solutions of Boundary Value Problems for Second-Order Ordinary Differential Equations with Nonhomogeneous Boundary Conditions[J].Journal of Yantai University(Natural Science and Engineering edirion),2012(4):251-255.
Authors:XIE Chun-jie
Institution:XIE Chun-jie(School of Mathematics and Statistics,Northwest Normal University,Lanzhou 730070,China)
Abstract:By using O-convex operator theory, we consider the existence and uniqueness of the positive solution of boundary value problems for second-order ordinary differential equations with nonhomogeneous boundary conditions (p(t)u'(t))'+h(t)f(u)=0,t∈(0,1),au(0)-bp(0)u'(0)=αu]+λ,cu(1)+dp(1)u'(1)=βu]+ where p∈C(0,1],(0,+∞)),h∈C(0,1],0,+∞)),a,b,c,d∈0,+∞)are constants,f∈C(0,+∞),0,+∞)),αu]=∫10u(s)dA(s),βu]=∫10u(s)dB(s),A ,B are bounded variation functions,λ,μ ∈ 0, + ∞) are parameters. A sufficient condition is obtained for the existence and uniqueness of a positive solution, and the dependence of the solution on parameters A and/.t is also studied.
Keywords:θ-convex operator  nonhomogeneity  uniqueness  dependence on parameters
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