期刊论文详细信息
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS | 卷:158 |
Iterative methods for least-square problems based on proper splittings | |
Article; Proceedings Paper | |
Climent, JJ ; Perea, C | |
关键词: iterative method; proper splitting; multisplitting; Moore-Penrose inverse; least-square problem; | |
DOI : 10.1016/S0377-0427(03)00465-5 | |
来源: Elsevier | |
【 摘 要 】
For the linear-squares problems min, parallel tob - Axparallel to(2), where A is large and sparse, straightforward application of Cholesky or QR factorization will lead to catastrophic fill in factor R. We consider handling such problems by a iterative methods based on proper splittings. We establish the convergence, to the least-square solution y = Adaggerx, for the sequential two-stage iterative method and for the parallel stationary iterative method. (C) 2003 Elsevier B.V. All rights reserved.
【 授权许可】
Free
【 预 览 】
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10_1016_S0377-0427(03)00465-5.pdf | 121KB | download |