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arXiv 1803.01293math.CO
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0-1迹为零且平方为0-1的矩阵

0-1 matrices with zero trace whose squares are 0-1 matrices

Zejun Huang, Zhenhua Lyu

摘要:

本文给出了当$n$为0 - 1矩阵时,迹为零的0 - 1矩阵的非零元素的最大个数。达到这个最大数量的极值矩阵的特点。

英文摘要:

In this paper, we determine the maximum number of nonzero entries in 0-1 matrices of order $n$ with zero trace whose squares are 0-1 matrices when $n\ge 8$. The extremal matrices attaining this maximum number are also characterized.

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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