| 拟亚正定阵及其子结构 |
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| 引用本文： | 李修清. 拟亚正定阵及其子结构[J]. 延安大学学报(自然科学版), 1996, 15(2): 6-10 |
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| 作者姓名： | 李修清 |
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| 作者单位： | 青海师专 |
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| 摘 要： | 本文引进拟亚正定阵的概念，讨论了它的若干性质及其子结构，证明了拟亚正定降的加性复合阵还是拟亚正定阵，从而改进了文［５］中的一个结果。
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| 关 键 词： | 拟亚正定阵 亚正定阵 Schur补 子结构 |
Quasi-hypo Positive Definite Matrices arid Its Substructure |
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| Li Xiuqing. Quasi-hypo Positive Definite Matrices arid Its Substructure[J]. Journal of Yan'an University(Natural Science Edition), 1996, 15(2): 6-10 |
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| Authors: | Li Xiuqing |
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| Abstract: | In this paper, the concept of quasi-hypo positive definite matrices has been introduced; several properties and its substrtrcture has been discussed and it has been proved that additive eompound matrices of quasi-hypo positive definite matrices are just quasi - hypo positive definite matrices; therofore, one result in [5]is improved. |
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| Keywords: | Quasi-hypo positive definite matrices Hypo positive definite matrices Schur supplement Additive compound matrices |
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