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北美退伍军人节(Veterans Day),12 日无更新
arXiv 0709.3547math.COquant-ph
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置换矩阵的部分转置

Partial transpose of permutation matrices

Qing-Hu Hou, Toufik Mansour, Simone Severini

摘要:

分块矩阵M的部分转置是通过独立地转置M的块而获得的矩阵。我们从组合的角度来探讨部分转置的概念。从这个角度出发,我们解决了置换矩阵部分转置的一些基本计数问题。更具体地说,我们计算了等于其部分转置的置换矩阵的数目以及其部分转置仍然是置换的置换矩阵的数目。当仅限于对称置换矩阵时,我们也解决了这些问题。

英文摘要:

The partial transpose of a block matrix M is the matrix obtained by transposing the blocks of M independently. We approach the notion of partial transpose from a combinatorial point of view. In this perspective, we solve some basic enumeration problems concerning the partial transpose of permutation matrices. More specifically, we count the number of permutations matrices which are equal to their partial transpose and the number of permutation matrices whose partial transpose is still a permutation. We solve these problems also when restricted to symmetric permutation matrices only.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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