A duality of scaffolds for translation association schemes

A duality of scaffolds for translation association schemes
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翻译关联方案支架的二元性

DOI:
10.1016/j.laa.2021.12.018
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发表时间:
2021-10
影响因子:
1.1
通讯作者:
Wang Tao
Wang Tao
中科院分区:
数学3区
文献类型:
--
作者:
Liang Xiaoye;Tan Ying-Ying;Tanaka Hajime;Wang Tao

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脚手架是在结合模式的研究中出现的某些张量,(隐含地)被(隐含地)理解为有向图,带有不同的“根”节点和矩阵边权重,通常取自Bose-Mesner代数。本文首先对Martin(2021)关于有向图嵌入到平面上的闭圆内且根结点都位于边界圆上的支架的对偶猜想进行了轻微的修正,然后证明了如果我们仅限于平移结合方案,即那些允许交换正则自同构群的结合方案,则这个修正的猜想是成立的。
Scaffoldsare certain tensors arising in the study of association schemes, and have been (implicitly) understood diagrammatically as digraphs with distinguished “root” nodes and with matrix edge weights, often taken from Bose–Mesner algebras. In this paper, we first present a slight modification of Martin's conjecture (2021) concerning a duality of scaffolds whose digraphs are embedded in a closed disk in the plane with root nodes all lying on the boundary circle, and then show that this modified conjecture holds true if we restrict ourselves to the class oftranslationassociation schemes, i.e., those association schemes that admit abelian regular automorphism groups.
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