Remarks on nonlocal boundary value problems at resonance
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摘要
We show that it is important to allow the nonlinear term to change sign when discussing existence of a positive solution for multipoint, or more general nonlocal, boundary value problems in the resonant case. When the nonlinear term has a fixed sign we obtain simple necessary and sufficient conditions for the existence of positive solutions.
论文关键词:Nonlocal boundary conditions,Resonance,Positive solution
论文评审过程:Available online 28 January 2010.
论文官网地址:https://doi.org/10.1016/j.amc.2010.01.056