Fast iterative solvers for large matrix systems arising from time-dependent Stokes control problems
Fast iterative solvers for large matrix systems arising from time-dependent Stokes control problems
复制标题
针对由时间相关斯托克斯控制问题引起的大型矩阵系统的快速迭代求解器
DOI:
10.1016/j.apnum.2016.05.002
复制
发表时间:
2016
影响因子:
2.8
通讯作者:
Pearson J
中科院分区:
文献类型:
--
作者:
Pearson J
In this manuscript we consider the development of fast iterative solvers for Stokes control problems, an important class of PDE-constrained optimization problems. In particular we wish to develop effective preconditioners for the matrix systems arising from finite element discretizations of time-dependent variants of such problems. To do this we consider a suitable rearrangement of the matrix systems, and exploit the saddle point structure of many of the relevant sub-matrices involved–we may then use this to construct representations of these sub-matrices based on good approximations of their (1, 1)-block and Schur complement. We test our recommended iterative methods on a distributed control problem with Dirichlet boundary conditions, and on a time-periodic problem.
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
J. Pearson
通讯作者:
J. Pearson
影响因子:
2.1
作者:
Stefan Takacs
通讯作者:
Stefan Takacs
DOI:
--
发表时间:
2013
期刊:
European Conference on Numerical Mathematics and Advanced Applications
影响因子:
--
作者:
Wolfgang Krendl;V. Simoncini;W. Zulehner
通讯作者:
W. Zulehner