| CS-阵的组合刻划 |
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| 引用本文： | 徐光辉. CS-阵的组合刻划[J]. 数学的实践与认识, 2008, 38(21) |
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| 作者姓名： | 徐光辉 |
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| 基金项目： | 国家自然科学基金 |
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| 摘 要： | CS-阵是符号矩阵理论中的一类重要矩阵,与条件符号可解线性方程组密切相关.通过引入强行与强阵等概念,给出了CS-阵及与之相关的BCS-阵、极大CS-阵的组合刻划.
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| 关 键 词： | 矩阵 符号 组合刻划 |
A Combinatorial Characteristic of CS-matrices |
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| XU Guang-hui. A Combinatorial Characteristic of CS-matrices[J]. Mathematics in Practice and Theory, 2008, 38(21) |
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| Authors: | XU Guang-hui |
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| Abstract: | CS-matrices is an important class of matrix in signed matrix theory that is correlative with conditional sign-solvable linear systems.In this paper,CS-matrices and some special classes of CS-matrices such as BCS-matrices and maximal CS-matrices are further studied.Some combinatorial characteristics of them are given by introducing the concepts of ″majorized row″ and ″majorized matrix″. |
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| Keywords: | matrix sign combinatorial characteristic |
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