research
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03/24/2021
Characterizing total negativity and testing their interval hulls
A matrix is called totally negative (totally non-positive) of order k, i...
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09/04/2020
Interval hulls of N-matrices and almost P-matrices
We establish a characterization of almost P-matrices via a sign non-reve...
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07/20/2020
Sign non-reversal property for totally positive matrices and testing total positivity on their interval hull
We establish a novel characterization of totally positive matrices via a...
research
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01/19/2020