| 关于分块矩阵的对角schur补 |
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| 引用本文： | 汤凤香,何淦瞳,方秀男,李培培. 关于分块矩阵的对角schur补[J]. 贵州大学学报(自然科学版), 2007, 24(2): 116-119 |
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| 作者姓名： | 汤凤香 何淦瞳 方秀男 李培培 |
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| 作者单位： | 佳木斯大学,数学系,黑龙江,佳木斯,154007;贵州大学,理学院,贵州,贵阳,550025;贵州大学,理学院,贵州,贵阳,550025;佳木斯大学,数学系,黑龙江,佳木斯,154007 |
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| 摘 要： | 利用矩阵分块的思想,主要证明了I-块严格对角占优阵的对角schur补仍然是I-块严格对角占优阵,同时利用连续性证明了I-BDD的对角schur补还是I-BDD。
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| 关 键 词： | 对角schur补 Ⅰ-块严格对角占优阵 块对角占优阵 |
| 文章编号： | 1000-5269（2007）02-0116-04 |
| 修稿时间： | 2006-12-20 |
On diagonally schur complement of block matrices |
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| TANG Feng-xiang,HE Gan-tong,FANG Xiu-nan,LI Pei-pei. On diagonally schur complement of block matrices[J]. Journal of Guizhou University(Natural Science), 2007, 24(2): 116-119 |
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| Authors: | TANG Feng-xiang HE Gan-tong FANG Xiu-nan LI Pei-pei |
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| Affiliation: | 1. Department of Mathematics, Jiamusi University, Heilongjiang 154007, China; 2. Department of Mathematics,Guizhou University, Guiyang,550025 China |
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| Abstract: | Author proved that diagonally schur complement of I-block strictly diagonally dominant matrices was still I-block strictly diagonally dominant matrices,and proved that the diagonally schur complements of I-BDD was still I-BDD by a continuity argument. |
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| Keywords: | diagonally schur complement I-block strictly diagonally dominat matrices block diagonally domiant matrices |
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