Rational Krylov subspace methods for phi-functions in exponential integrators
Rational Krylov subspace methods for phi-functions in exponential integrators
复制标题
指数积分器中 phi 函数的有理 Krylov 子空间方法
DOI:
10.5445/ir/1000043647
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发表时间:
2014
影响因子:
2.1
通讯作者:
T. Göckler
中科院分区:
文献类型:
--
作者:
T. Göckler
Exponential integrators are a class of numerical methods for stiff systems of differential equations which require the computation of products of so-called matrix phi-functions and vectors. In this thesis, we consider the approximation of these matrix functions times some vector by rational and extended Krylov subspace methods. For arbitrary matrices with a field of values in the left complex half-plane, a uniform approximation is obtained that predicts a sublinear convergence.
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DOI:
10.1137/12089226x
发表时间:
2013
期刊:
SIAM J. Numer. Anal.
影响因子:
--
作者:
Tanja Göckler;Volker Grimm
通讯作者:
Volker Grimm
影响因子:
1.5
作者:
S. Güttel;L. Knizhnerman
通讯作者:
S. Güttel;L. Knizhnerman
影响因子:
3.1
作者:
Al-Mohy, Awad H.;Higham, Nicholas J.
通讯作者:
Higham, Nicholas J.
影响因子:
1.5
作者:
Volker Grimm
通讯作者:
Volker Grimm