RBFs approximation method for time fractional partial differential equations

摘要

In this paper, radial basis functions (RBFs) approximation method is implemented for time fractional advection-diffusion equation on a bounded domain. In this method the first order time derivative is replaced by the Caputo fractional derivative of order χ ε (0,1], and spatial derivatives are approximated by the derivative of interpolation in the Kansa method. Stability and convergence of the method is discussed. Several numerical examples are include to demonstrate effectiveness and accuracy of the method.