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含有1-separation和2-separation符号模式矩阵的最小秩

Minimum Rank of Sign Pattern Matrix with 1-separation and 2-separation
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摘要 符号模式矩阵的最小秩是指该符号模式矩阵定性类中实矩阵秩的最小值。对含有1-separation和2-separation符号模式矩阵,利用它的性质和证明不等式的方法,给出这类符号模式矩阵的最小秩。 The minimum rank of a sign pattern matrix is the minimum value of ranks of all real matrices in its qualitative class.The formula of the minimum rank of a sign pattern matrix containing1-separation and 2-separation is given by using its properties and methods to prove inequalities.
作者 赵璇 高玉斌 ZHAO Xuan;GAO Yubin(School of Science,North University of China,Taiyuan 030051,China)
机构地区 中北大学理学院
出处 《重庆理工大学学报(自然科学)》 CAS 北大核心 2020年第10期247-254,共8页 Journal of Chongqing University of Technology:Natural Science
基金 山西省自然科学基金项目(201601D202003)。
关键词 符号模式矩阵 1-separation 2-separation 最小秩 sign pattern matrix 1-separation 2-separation minimum rank
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