Existence and nonexistence results for a system of integral boundary value problems with parametric dependence

Abstract

In this paper, we are concerned with a class of system of nonlinear singular fractional differential equations with integral boundary conditions. More precisely, we establish sufficient conditions for existence, multiplicity and nonexistence of positive solutions. The results are derived in terms of different values of the parameters. Our approach relies on the Krasnoselskii?s fixed point theorem. Some examples are given to illustrate our main results.