Centered PSD matrices with thin spectrum are M-matrices
We show that real, symmetric, centered (zero row sum) positive semidefinite matrices of order n and rank n − 1 with eigenvalue ratio λ max / λ min ≤ n / ( n − 2 ) between the largest and smallest nonzero eigenvalue have nonpositive off-diagonal entries, and that this eigenvalue criterion is ti...
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| Natura: | Journal article |
| Lingua: | English |
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University of Wyoming Libraries
2023
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