Balanced 0-1 Matrices I. Decomposition
Balanced 0-1 Matrices I. Decomposition
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平衡0-1矩阵一、分解
DOI:
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
Kristina Vuskovic
中科院分区:
文献类型:
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作者:
M. Conforti;Gérard Cornuéjols;Ajai Kapoor;Kristina Vuskovic
A 0, ±1 matrix is balanced if, in every square submatrix with two nonzero entries per row and column, the sum of the entries is a multiple of four. This paper extends the decomposition of balanced 0, 1 matrices obtained by Conforti, Cornuejols, and Rao (1999, J. Combin. Theory Ser. B77, 292?406) to the class of balanced 0, ±1 matrices. As a consequence, we obtain a polynomial time algorithm for recognizing balanced 0, ±1 matrices.