Numerical solutions of ordinary fractional differential equations with singularities
For researchers working on numerical methods for fractional differential equations, this work offers an incremental improvement in accuracy for a specific class of problems.
The paper addresses the low accuracy of numerical solutions for fractional differential equations with singularities at the initial point. It proposes a method using fractional Taylor polynomials to improve accuracy, achieving higher precision for two-term and three-term FDEs.
The solutions of fractional differential equations (FDEs) have a natural singularity at the initial point. The accuracy of their numerical solutions is lower than the accuracy of the numerical solutions of FDEs whose solutions are differentiable functions. In the present paper we propose a method for improving the accuracy of the numerical solutions of ordinary linear FDEs with constant coefficients which uses the fractional Taylor polynomials of the solutions. The numerical solutions of the two-term and three-term FDEs are studied in the paper.