Communications on Applied Mathematics and Computation ›› 2021, Vol. 3 ›› Issue (4): 701-718.doi: 10.1007/s42967-020-00110-5

• ORIGINAL PAPER • Previous Articles     Next Articles

High Order Semi-implicit Multistep Methods for Time-Dependent Partial Diferential Equations

Giacomo Albi1, Lorenzo Pareschi2   

  1. 1 Computer Science Department, University of Verona, Verona 37134, Italy;
    2 Mathematics and Computer Science Department, University of Ferrara, Ferrara 44121, Italy
  • Received:2019-12-31 Revised:2020-09-17 Online:2021-11-20 Published:2021-11-25
  • Contact: Giacomo Albi, Lorenzo Pareschi E-mail:giacomo.albi@univr.it;lorenzo.pareschi@unife.it

Abstract: We consider the construction of semi-implicit linear multistep methods that can be applied to time-dependent PDEs where the separation of scales in additive form, typically used in implicit-explicit (IMEX) methods, is not possible. As shown in Boscarino et al. (J. Sci. Comput. 68: 975–1001, 2016) for Runge-Kutta methods, these semi-implicit techniques give a great fexibility, and allow, in many cases, the construction of simple linearly implicit schemes with no need of iterative solvers. In this work, we develop a general setting for the construction of high order semi-implicit linear multistep methods and analyze their stability properties for a prototype linear advection-difusion equation and in the setting of strong stability preserving (SSP) methods. Our fndings are demonstrated on several examples, including nonlinear reaction-difusion and convection-difusion problems.

Key words: Semi-implicit methods, Implicit-explicit methods, Multistep methods, Strong stability preserving, High order accuracy

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