Barycentric rational interpolation method for solving time-dependent fractional convection-diffusion equation-Reference-Cited by-同舟云学术

Barycentric rational interpolation method for solving time-dependent fractional convection-diffusion equation

Published:2023 Issue:7 Volume:31 Page:4034-4056
ISSN:2688-1594
Container-title:Electronic Research Archive
language:
Short-container-title:era

Author:

Li Jin,Cheng Yongling

Abstract

<abstract><p>The time-dependent fractional convection-diffusion (TFCD) equation is solved by the barycentric rational interpolation method (BRIM). Since the fractional derivative is the nonlocal operator, we develop a spectral method to solve the TFCD equation to get the coefficient matrix as a full matrix. First, the fractional derivative of the TFCD equation is changed to a nonsingular integral from the singular kernel to a density function. Second, efficient quadrature of the new Gauss formula are constructed to simply compute it. Third, matrix equation of discrete the TFCD equation is obtained by the unknown function replaced by a barycentric rational interpolation basis function. Then, the convergence rate of BRIM is proved. Finally, a numerical example is given to illustrate our result.</p></abstract>

Publisher

American Institute of Mathematical Sciences (AIMS)

Subject

General Mathematics

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