A preconditioner for coupling system of natural boundary element and composite grid finite element

	A preconditioner for coupling system of natural boundary element and composite grid finite element
	Hu, QY; Yu, DH
	2002-03-01
发表期刊	JOURNAL OF COMPUTATIONAL MATHEMATICS
ISSN	0254-9409
卷号	20 期号:2 页码:165-174
摘要	In this paper, based on the natural boundary reduction advanced by Feng and Yu, we discuss a coupling BEM with FEM for the Dirichlet exterior problems. In this method the finite element grids consist of fine grid and coarse grid so that the singularity at the corner points can be handled conveniently. In order to solve the coupling system by the preconditioning conjugate gradient method, we construct a simple preconditioner for the "stiffness" matrix. Some error estimates of the corresponding approximate solution and condition number estimate of the preconditioned matrix are also obtained.
关键词	natural boundary reduction composite grid error estimate preconditioner condition number
语种	英语
WOS研究方向	Mathematics
WOS类目	Mathematics, Applied ; Mathematics
WOS记录号	WOS:000174198000005
出版者	VSP BV
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/17646
专题	计算数学与科学工程计算研究所
作者单位	Chinese Acad Sci, Acad Math & Syst Sci, ICMSEC, LSEC, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Hu, QY,Yu, DH. A preconditioner for coupling system of natural boundary element and composite grid finite element[J]. JOURNAL OF COMPUTATIONAL MATHEMATICS,2002,20(2):165-174.
APA	Hu, QY,&Yu, DH.(2002).A preconditioner for coupling system of natural boundary element and composite grid finite element.JOURNAL OF COMPUTATIONAL MATHEMATICS,20(2),165-174.
MLA	Hu, QY,et al."A preconditioner for coupling system of natural boundary element and composite grid finite element".JOURNAL OF COMPUTATIONAL MATHEMATICS 20.2(2002):165-174.