An investigation of radial basis functions for fractional derivatives and their applications

In the present study, the radial basis functions (RBF) are combined with polynomial basis functions to approximate the fractional derivatives specifically. We explore two new types of local support fields for the first time in the literature. In addition, we apply the RBF, combined with an appropriate number of polynomial basis functions featuring a new type of local support field to solve the single-term, multi-term ordinary fractional equations, time–space and two-side space fractional partial differential equations. Finally, the accuracy of the presented method is demonstrated via numerical experiments.