Strong stability preserving implicit and implicit-explicit second derivative general linear methods with RK stability

被引:5
|
作者
Moradi, Afsaneh [1 ]
Abdi, Ali [1 ]
Hojjati, Gholamreza [1 ]
机构
[1] Univ Tabriz, Fac Math Sci, Tabriz, Iran
来源
COMPUTATIONAL & APPLIED MATHEMATICS | 2022年 / 41卷 / 04期
关键词
General linear methods; Second derivative methods; Monotonicity; Strong stability preserving; Implicit methods; ORDER; SCHEMES;
D O I
10.1007/s40314-022-01839-w
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this work, we use a formulation based on forward Euler and backward derivative condition to obtain A-stable SSP implicit SGLMs up to order five and stage order q = p and SSP implicit-explicit (IMEX) SGLMs where the implicit part of the method is A-stable and the time-step is apart from the explicit part. These kind of methods compared to explicit ones of the same order and number of stages have quite larger SSP time-step. Moreover, the construction of SSP IMEX schemes of order p = q = s and r = 2 up to order p = 3 is presented where the implicit part of the method has Runge-Kutta stability together with A-stability property. Numerical results to show the expected order of convergence of the proposed methods are presented on a variety of linear and nonlinear problems.
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页数:23
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