多重交替符号矩阵

IF 0.7 4区数学 Q2 Mathematics

Electronic Journal of Linear Algebra Pub Date : 2023-05-18 DOI:10.13001/ela.2023.7471

R. Brualdi, G. Dahl

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引用次数: 0

摘要

我们引入了一种称为多重交替符号矩阵的交替符号矩阵（ASM）的推广，并发展了它们的一些性质。具有指定行和列和向量$R$和$S$的多ASM的类扩展了具有指定$R$或$S$的$（0,1）$矩阵的类。当$R=S$是一个常数向量时的特殊情况，特别是所有的2，将被更详细地处理。我们还研究了一类多重ASM所跨越的多面体。最后，我们讨论了在一类多重ASM上定义Bruhat阶的可能性。

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Multi-alternating sign matrices

We introduce a generalization of alternating sign matrices (ASMs) called multiASMs and develop some of their properties. Classes of multiASMs with specified row and column sum vectors $R$ and $S$ extend the classes of $(0,1)$-matrices with specified $R$ and $S$. The special case when $R=S$ is a constant vector, in particular all 2's, is treated in more detail. We also investigate the polytope spanned by a class of multiASMs. Finally, we discuss the possibility of defining a Bruhat order on a class of multiASMs.

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来源期刊

Electronic Journal of Linear Algebra 数学-数学

CiteScore

1.20

自引率

14.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal is essentially unlimited by size. Therefore, we have no restrictions on length of articles. Articles are submitted electronically. Refereeing of articles is conventional and of high standards. Posting of articles is immediate following acceptance, processing and final production approval.