A Predictor-Corrector Compact Difference Scheme for a Nonlinear Fractional Differential Equation

In this work, a predictor-corrector compact difference scheme for a nonlinear fractional differential equation is presented. The MacCormack method is provided to deal with nonlinear terms, the Riemann-Liouville (R-L) fractional integral term is treated by means of the second-order convolution quadrature formula, and the Caputo derivative term is discretized by the L1 discrete formula. Through the first and second derivatives of the matrix under the compact difference, we improve the precision of this scheme. Then, the existence and uniqueness are proved, and the numerical experiments are presented.

Automated summary

In this work, a predictor-corrector compact difference scheme is proposed to solve a nonlinear fractional differential equation. The MacCormack method is used to handle nonlinear terms, the Riemann-Liouville (R-L) fractional integral term is treated using the second-order convolution quadrature formula, and the Caputo derivative term is discretized using the L1 discrete formula. By calculating the first and second derivatives of the matrix under the compact difference, the precision of this scheme is improved. The existence and uniqueness are proven, and numerical experiments are presented.