Extrapolation-based super-convergent implicit-explicit Peer methods with A-stable implicit part
Extrapolation-based super-convergent implicit-explicit Peer methods with A-stable implicit part
复制标题
具有 A 稳定隐式部分的基于外推法的超收敛隐式显式 Peer 方法
DOI:
10.1016/j.jcp.2018.04.006
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Hundsdorfer W
中科院分区:
文献类型:
--
作者:
Schneider M;Lang J;Hundsdorfer W
In this paper, we extend the implicit-explicit (IMEX) methods of Peer type recently developed by Lang and Hundsdorfer (2017)[16] to a broader class of two-step methods that allow the construction of super-convergent IMEX-Peer methods with A-stable implicit part. IMEX schemes combine the necessary stability of implicit and low computational costs of explicit methods to efficiently solve systems of ordinary differential equations with both stiff and non-stiff parts included in the source term. To construct super-convergent IMEX-Peer methods with favourable stability properties, we derive necessary and sufficient conditions on the coefficient matrices and apply an extrapolation approach based on already computed stage values. Optimised super-convergent IMEX-Peer methods of order s+ 1 for s= 2, 3, 4 stages are given as result of a search algorithm carefully designed to balance the size of the stability regions and the extrapolation errors. Numerical experiments and a comparison to other IMEX-Peer methods are included.
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影响因子:
2.4
作者:
R. Weiner;B. A. Schmitt;H. Podhaisky;Stefan Jebens
通讯作者:
Stefan Jebens
DOI:
10.1017/s0962492906220014
发表时间:
2006-01-01
期刊:
ACTA NUMERICA, VOL 15, 2006
影响因子:
--
作者:
Butcher, J. C.
通讯作者:
Butcher, J. C.
影响因子:
2.8
作者:
B. Soleimani;O. Knoth;R. Weiner
通讯作者:
R. Weiner
影响因子:
1.7
作者:
Bettina Gottermeier;J. Lang
通讯作者:
J. Lang
DOI:
10.1016/j.cam.2016.06.014
发表时间:
2017
期刊:
J. Comput. Appl. Math.
影响因子:
--
作者:
B. Soleimani;R. Weiner
通讯作者:
R. Weiner