绵阳师范学院学报
綿暘師範學院學報
면양사범학원학보
JOURNAL OF MIANYANG NORMAL UNIVERSITY
2012年
11期
19-21
,共3页
不完全分解%H矩阵%预条件技术%位移线性方程组
不完全分解%H矩陣%預條件技術%位移線性方程組
불완전분해%H구진%예조건기술%위이선성방정조
Incomplete factorization%H - matrix%pre - conditioner%shifted linear system
位移线性方程组的求解是我们一直关心的问题。我们将对这种线性方程组提出一种新的ILU预条件方法。当这个线性方程组的系数矩阵式对称的M矩阵或者对称的正定矩阵时Meurant和Benzi对这个问题提出了解决的算法。在该文中,我们将解决在更一般的条件下,解决这个问题。
位移線性方程組的求解是我們一直關心的問題。我們將對這種線性方程組提齣一種新的ILU預條件方法。噹這箇線性方程組的繫數矩陣式對稱的M矩陣或者對稱的正定矩陣時Meurant和Benzi對這箇問題提齣瞭解決的算法。在該文中,我們將解決在更一般的條件下,解決這箇問題。
위이선성방정조적구해시아문일직관심적문제。아문장대저충선성방정조제출일충신적ILU예조건방법。당저개선성방정조적계수구진식대칭적M구진혹자대칭적정정구진시Meurant화Benzi대저개문제제출료해결적산법。재해문중,아문장해결재경일반적조건하,해결저개문제。
The solution to shifted linear equation has always been a concern, and a new ILU pre - conditioner to it is being put forward in this paper, that is, the existing ILU pre -conditioner has been modified to obtain a pre - conditioner for the shifted linear system. This problem has been studied by Meurant and Benzi when the coefficient matrix is a symmetric M - matrix or a symmetric positive definite matrix. In this paper, the problem was discussed when the coefficient matrix is an Hmatrix.