Document Type : Research Paper
Faculty of Sciences and Technology, Tahri Mohammed University, Bechar, Algeria
Faculty of Sciences and Technology, Djilali Bounaama University, Khemis-Miliana, Algeria
Laboratory of Mathematics, Djillali Liabes University, Sidi Bel Abbes, Algeria
In this paper, we investigate the existence of solutions of some three-point boundary value problems for n-th order nonlinear fractional differential equations with higher boundary conditions by using a fixed point theorem on cones.