A class of nonlinear multipoint boundary value problems for singular fractional differential equations is considered. By means of a coupled fixed point theorem on ordered sets, some results on the existence and uniqueness of positive solutions are obtained.
"Positive Solutions for Multipoint Boundary Value Problems for Singular Fractional Differential Equations." J. Appl. Math. 2014 1 - 7, 2014. https://doi.org/10.1155/2014/596123