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NII Technical Report (NII-2013-004E):Convergence of Inner-iteration GMRES Methods for Least Squares Problems (Revised Version)
https://doi.org/10.20736/0000001274
https://doi.org/10.20736/000000127465cf1636-1a25-4145-b475-9d4b773b6d74
名前 / ファイル | ライセンス | アクション |
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NII Technical Report (NII-2013-004E):Convergence of Inner-iteration GMRES Methods for Least Squares Problems (Revised Version) (452.8 kB)
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Item type | レポート / Report(1) | |||||||||||||
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公開日 | 2019-03-13 | |||||||||||||
タイトル | ||||||||||||||
言語 | en | |||||||||||||
タイトル | NII Technical Report (NII-2013-004E):Convergence of Inner-iteration GMRES Methods for Least Squares Problems (Revised Version) | |||||||||||||
言語 | ||||||||||||||
言語 | eng | |||||||||||||
キーワード | ||||||||||||||
言語 | ja | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | テクニカルレポート | |||||||||||||
キーワード | ||||||||||||||
言語 | en | |||||||||||||
主題Scheme | Other | |||||||||||||
主題 | Technical Report | |||||||||||||
資源タイプ | ||||||||||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
タイプ | departmental bulletin paper | |||||||||||||
ID登録 | ||||||||||||||
ID登録 | 10.20736/0000001274 | |||||||||||||
ID登録タイプ | JaLC | |||||||||||||
著者 |
保國, 惠一
× 保國, 惠一
× 速水, 謙
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抄録 | ||||||||||||||
内容記述タイプ | Abstract | |||||||||||||
内容記述 | We develop a general convergence theory for the generalized minimal residual method preconditioned by inner iterations for solving least squares problems. The inner iterations are performed by stationary iterative methods. We also present theoretical justifications for using specific inner iterations such as the Jacobi and SOR-type methods. The theory improves previous work [K. Morikuni and K. Hayami, SIAM J. Matrix Appl. Anal., 34 (2013), pp. 1–22], particularly in the rank-deficient case. We also characterize the spectrum of the preconditioned coefficient matrix by the spectral radius of the iteration matrix for the inner iterations, and give a convergence bound for the proposed methods. Finally, numerical experiments show that the proposed methods are more robust and efficient compared to previous methods for some rank-deficient problems. | |||||||||||||
言語 | en | |||||||||||||
書誌情報 |
ja : NIIテクニカル・レポート en : NII Technical Report p. 1-24, 発行日 2013-12-03 |
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出版者 | ||||||||||||||
言語 | ja | |||||||||||||
出版者 | 国立情報学研究所 | |||||||||||||
ISSN | ||||||||||||||
収録物識別子タイプ | ISSN | |||||||||||||
収録物識別子 | 1346-5597 |