PBIB-Designs from Certain Subsets of Distance-Regular Graphs

IF 0.7 4区数学 Q2 MATHEMATICS

Bulletin of The Iranian Mathematical Society Pub Date : 2024-02-20 DOI:10.1007/s41980-024-00859-y

Nan Li, Yan Zhu

引用次数: 0

Abstract

Partially balanced incomplete block (PBIB)-designs are well known to be the generalization of combinatorial 2-designs. In this paper, we first construct PBIB-designs from diametral paths of distance-regular graphs, which generalizes the result for strongly regular graphs. Furthermore, for Q-polynomial distance-regular graphs associated with regular semilattices, we obtain the construction of PBIB-designs through descendents with fixed dual width.

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从距离规则图的某些子集设计 PBIB

众所周知，部分平衡不完全块（PBIB）设计是组合 2 设计的一般化。在本文中，我们首先从距离不规则图的直径路径构建了 PBIB 设计，这是对强规则图结果的推广。此外，对于与正则半网格相关的 Q 多项式距离正则图，我们通过具有固定对偶宽度的后代获得了 PBIB 设计的构造。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of The Iranian Mathematical Society Mathematics-General Mathematics

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： The Bulletin of the Iranian Mathematical Society (BIMS) publishes original research papers as well as survey articles on a variety of hot topics from distinguished mathematicians. Research papers presented comprise of innovative contributions while expository survey articles feature important results that appeal to a broad audience. Articles are expected to address active research topics and are required to cite existing (including recent) relevant literature appropriately. Papers are critically reviewed on the basis of quality in its exposition, brevity, potential applications, motivation, value and originality of the results. The BIMS takes a high standard policy against any type plagiarism. The editorial board is devoted to solicit expert referees for a fast and unbiased review process.