Combining arbitrary order global Padé approximation of the Mittag-Leffler function with its addition formula for a significant accuracy boost

author: R. Herrmann

abstract:

The combination of the global Padé approximation of the Mittag-Leffler function with its addition formula for the case α<1 yields significantly higher accuracy results for a given arbitrary order n. We present a solution in terms of a Mathematica notebook to determine the general structure of the system of linear equations to be solved, followed by an implementation as a C++ program using the Eigen template library for linear algebra. For a comparison with contour integral solutions we present an implementation as a C++ program using the boost library’s quadrature package employing the Gauss-Kronrod-method.

reference:

arXiv:2408.10257