Positive Solutions to a Singular Second Order Three-Point Boundary Value Problem
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摘要: 应用锥中的不动点定理研究奇异二阶三点边值问题的正解的存在性。采用一种构造Green函数的方法为出发点,利用分段定义算子的手法讨论更一般的奇异二阶三点边值问题。得到了一个正解的存在性定理。其中的非线性项可以是变号的。Abstract: A fixed point theorem is used to study a singular second order three-point boundary value problem. The problem is more general. Combining the method of constructing Green functions with operators defined piecewise, the existence result of positive solutions to a singular second order three-point boundary value probelm is established. The nonlinearity can be allowed to change sign.
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Key words:
- positive solution /
- boundary value problem /
- existence
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[1] MA Ru-yun.Positive solutions of a nonlinear th ree-point boundary value problems[J].Electron J Differential Equations,1999,34:1-8. [2] Gupta C P.A sharper condition for the solvability of a three-point second order boundary value problem[J].J Math Anal Appl,1997,205(2):586-597. [3] Krasosel'skill M A.Positive Solutions of Operator Equation[M].Gorningen:Noordhoff,1964. [4] Cabada A,Nieto J J.Fixed points and approximate solutions for no nlinear operator equations[J].J Comput Appl Math,2000,113 (1-2):17-25.
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