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A property of matrices with positive determinants
Authors:M Kojima  R Saigal
Institution:Northwestern University Evanston, Illinois, USA
Abstract:Let P be the set of all n × n real matrices which have a positive determinant. We show here that at least 2n ? 1 matrices are needed to “see” each matrix in P. Also, any finite subset of P can be “seen” from a class of at most 2n ? 1 matrices in P.
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