Permutation-matrix groups with positive sum |
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Authors: | Robert D. Grone D.G. Hoffman J.R. Wall |
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Affiliation: | Department of Mathematics Auburn University Auburn, Alabama 36849, USA |
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Abstract: | Explicit forms are given for all commutative sets of permutation matrices which sum to a positive matrix, and for nonabelian groups of permutation matrices of order twice an odd prime which sum to the matrix of all ones. A relationship to circulants of level k is indicated. |
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