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广义二次矩阵线性组合的秩与零度 被引量:2

Rank and Nullity of Linear Combinations of Generalized Quadratic Matrices
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摘要 利用广义二次矩阵与幂等矩阵的关系及幂等矩阵线性组合的秩及零度的不变性,证明了广义二次矩阵某些线性组合的秩及零度与其线性组合系数的选择是无关的,从而概括并推广了数量幂等矩阵、数量对合矩阵、二次矩阵线性组合的秩及零度的一些相关结果. By the relation of generalized quadratic matrices to idempotent matrices and the known results on rank and nullity for linear combinations of idempotent matrices, we studied the invarianee of rank and nullity for linear combinations of generalized qttadratic matrices, which unified and generalized the related results in literature on rank and nullity for linear combinations of scalar-potent matrices, scalar-involutory matrices and quadratic matrices.
出处 《吉林大学学报(理学版)》 CAS CSCD 北大核心 2011年第6期993-996,共4页 Journal of Jilin University:Science Edition
基金 吉林省自然科学基金(批准号:201115185) 福建省自然科学基金(批准号:2010J01018) 福建省2008年高校服务海西建设重点项目(批准号:2008HX03) 福建省教育厅科研基金(批准号:JA08196) 吉林工商学院教育教学研究项目(批准号:201114)
关键词 广义二次矩阵 线性组合 零度 generalized quadratic matrix linear combination rank nullity
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