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arXiv 2106.06756math.CO
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有限域上增强主秩特征序列的组合性质

Combinatorial properties of the enhanced principal rank characteristic sequence over finite fields

Peter J. Dukes, Xavier Martínez-Rivera

摘要:

对称矩阵$B \in \mathbb{F}^{n \times n}$的增强主秩特征序列(epr-序列)被定义为$\ell_1 \ell_2 \cdots \ell_n$,其中$\ell_j \in \{\tt{A}, \tt{S}, \tt{N}\}$根据$B$的$j$阶的主子式是否全部、部分但不是全部或没有非零。基于第二作者最近对域$\mathbb{F}=\mathbb{F}_2$上对称矩阵的epr序列的分类,我们开始了对$\mathbb{F}=\mathbb{F}_3$的研究。此外,有限域上的epr-序列被证明与Ramsey理论和编码理论有联系。

英文摘要:

The enhanced principal rank characteristic sequence (epr-sequence) of a symmetric matrix $B \in \mathbb{F}^{n \times n}$ is defined as $\ell_1 \ell_2 \cdots \ell_n$, where $\ell_j \in \{\tt{A}, \tt{S}, \tt{N}\}$ according to whether all, some but not all, or none of the principal minors of order $j$ of $B$ are nonzero. Building upon the second author's recent classification of the epr-sequences of symmetric matrices over the field $\mathbb{F}=\mathbb{F}_2$, we initiate a study of the case $\mathbb{F}=\mathbb{F}_3$. Moreover, epr-sequences over finite fields are shown to have connections to Ramsey theory and coding theory.

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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