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A high-order compact difference method for time fractional Fokker–Planck equations with variable coefficients

  • Lei RenEmail author
  • Lei Liu
Article
  • 22 Downloads

Abstract

A high-order compact finite difference method is proposed for time fractional Fokker–Planck equations with variable convection coefficients. This method leads to a very simple and yet efficient compact finite difference scheme with high-order accuracy. It is also very convenient for us to give the corresponding analysis of stability and convergence using a discrete energy method. The proposed method is unconditionally stable and convergent with the convergence order \(\mathcal{O}(\tau ^{2}+h^{4})\), where \(\tau \) and h are the step sizes in time and space, respectively. Thus, it improves the convergence order of some recently developed methods. Numerical results confirm the theoretical analysis and demonstrate the high efficiency of this novel method.

Keywords

Fractional Fokker–Planck equation Compact finite difference method Stability High-order convergence Energy method 

Mathematics Subject Classification

65M06 65M12 65M15 35R11 

Notes

Acknowledgements

The authors would like to thank the referees for their valuable comments and suggestions which improved the presentation of this paper.

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Copyright information

© SBMAC - Sociedade Brasileira de Matemática Aplicada e Computacional 2019

Authors and Affiliations

  1. 1.School of Mathematics and StatisticsShangqiu Normal UniversityShangqiuPeople’s Republic of China

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