Interchanges and Invariant Positions in (?)c (R,S)

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作者
万宏辉 [1 ]
机构
[1] Huazhong University of Science and Technology
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R; S; Interchanges and Invariant Positions in;
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摘要
Let C=(c) be an m×n (0,1)-matrix. Let R=(r,…,r) and S=(s,…,s) be nonnegative integral vectors. Denote by (?)(R,S) the set of all m×n (0, 1)-matrices A=(a) satisfying a≥c,a+…+a=r,a+…+a=sfor 1≤i≤m, 1≤j≤n.
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页码:80 / 80
页数:1
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