On existence theorems of positive solutions to nonlinear singular differential equations
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摘要
Suppose (i) f(t,u):(0,1)×(0,+∞)→[0,+∞) is continuous and is increasing on u; (ii) there exists a function g:[1,∞)→(0,+∞),g(b)
论文关键词：Second order singular three-point boundary value problems,Positive solution,Lower and upper solution,Maximum principle
论文评审过程：Available online 7 February 2007.
论文官网地址：https://doi.org/10.1016/j.amc.2007.01.073
