New results for multipoint singular boundary value problems on a measure chain (Q1724178)

Summary: We study the existence and uniqueness of positive solutions for a class of singular \(m\)-point boundary value problems of second order differential equations on a measure chain. A sharper sufficient condition for the existence and uniqueness of \(C^1_{\mathrm{rd}}[0,T]\) positive solutions as well as \(C^1_{\mathrm{rd}}[0,T]\) positive solutions is obtained by the technique of lower and upper solutions and the maximal principle theorem.