TY - JOUR AU - Belmekki, Mohammed AU - Nieto, JuanJ AU - Rodríguez-López, Rosana PY - 2009 DA - 2009/07/14 TI - Existence of Periodic Solution for a Nonlinear Fractional Differential Equation JO - Boundary Value Problems SP - 324561 VL - 2009 IS - 1 AB - We study the existence of solutions for a class of fractional differential equations. Due to the singularity of the possible solutions, we introduce a new and proper concept of periodic boundary value conditions. We present Green's function and give some existence results for the linear case and then we study the nonlinear problem. SN - 1687-2770 UR - https://doi.org/10.1155/2009/324561 DO - 10.1155/2009/324561 ID - Belmekki2009 ER -