Application of Green's function and Sinc approximation in the numerical solution of the fractional differential equations

Document Type : Research Article


1 Department of Mathematics, South Tehran Branch, Islamic Azad University,Tehran, Iran

2 School of Mathematics, Iran University of Science and Technology, Narmak,Tehran 168613114, Iran


The primary purpose of this paper is the construction of the Green's function and Sinc approximation for a class of Caputo fractional boundary value problems (CFBVPs). By using the inverse derivative of the fractional order, we can derive the equivalent fractional order Volterra integral equations from CFBVPs, which is considered Green's function. It is approximated by the Sinc-Collocation method. A convergence analysis of the presented method is given. Our approach is applied to five examples.  We derive that our approach converges to the exact solution rapidly with the order of exponential accuracy.