RT Journal Article T1 Existence of Solutions for Nonlocal Boundary Value Problems of Higher-Order Nonlinear Fractional Differential Equations A1 Ahmad, Bashir A1 Nieto Roig, Juan José AB We study some existence results in a Banach space for a nonlocal boundary value probleminvolving a nonlinear differential equation of fractional order q given by cDqxt ft, xt ,0