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Linear Operators Strongly Preserving M-P Inverses of Matrices over Some Antinegative Commutative Semirings
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作者 张显 曹重光 《Journal of Mathematical Research and Exposition》 CSCD 1999年第3期508-514,共7页
Let S be an antinegative commutative semiring having no zero divisions or finite general Boolean Algebra and μ(S) the set of n×n matrices over S. In this paper we characterize the structure of the senigroup n,... Let S be an antinegative commutative semiring having no zero divisions or finite general Boolean Algebra and μ(S) the set of n×n matrices over S. In this paper we characterize the structure of the senigroup n,(S) of linear operators on μn,(S) that strongly preserve the M-P inverses of matrices. 展开更多
关键词 SEMIRING M-P inverse of matrix linear operator
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||A^(-1)||_∞ AND EQUIDIAGONAL-DOMINANCE
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作者 胡家赣 刘兴平 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 1998年第4期433-442,共10页
In this papert the matrix of equidiagonal-dominance is defined and several theorems about ||A-1||∞ and its evaluation are established. Many interesting numerical examples are given.
关键词 ||A^(-1)||_∞ NORM inverse of matrix equidiagonal dominance
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