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Showing 1 to 1 of 1 for “"The Drew-Johnson-Loewy conjecture"”.
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Completely Positive Matrices Over Semirings and Their CP-rank
… nonnegative matrix for some positive integer m. The smallest such m is called the CP-rank of A. In 1994, Drew, Johnson and Loewy conjectured that the CP-rank of n x n real completely positive matrices of order n ≥ 4 is bounded above by [n²/4]. There was some evidence in support of this …