Comparison analysis on two numerical methods for fractional diffusion problems based on rational approximations of $t^{\gamma },0\le t\le 1$

Stanislav Harizanov, Raytcho Lazarov, Pencho Marinov +2

We discuss, study, and compare experimentally three methods for solving the system of algebraic equations ${\mathbb{A}}^{\alpha }\mathbf{u}=\mathbf{f}$, $0<\alpha <1$, where $\mathbb{A}$ is a symmetric a…