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Sign patterns of rational matrices with large rank II
2022
The Electronic Journal of Linear Algebra
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It is known that, for any real m-by-n matrix A of rank n-2, there is a rational m-by-n matrix which has rank n-2 and sign pattern equal to that of A. We prove a more general result conjectured in the recent literature.
doi:10.13001/ela.2022.6807
fatcat:5525kn2nxbaibm5hsazvcbwaga