arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.09992math.GR
收藏

小区组3-设计上的区传递自同构群

Block-transitive automorphism groups on 3-designs with small block size

Xiaoqin Zhan, Meifang Yang

摘要:

本文研究了小区组3-设计的区组传递自同构群的结构。设$G$是具有$k\le 6$的非平凡$3$设计$\mathcal{D}$的块传递自同构群.证明了如果$G$是点本原的,则$G$是仿射型或几乎单型的.如果$G$是点非本原的,则$\mathcal{D}$是具有$λ\in\{4, 12, 16, 24, 28, 48, 56, 64, 84, 96, 112, 140\}$和$rank(G)=3$的$3$ - $(16,6,λ)$设计。

英文摘要:

The paper is an investigation of the structure of block-transitive automorphism groups of a 3-design with small block size. Let $G$ be a block-transitive automorphism group of a nontrivial $3$-$(v,k,λ)$ design $\mathcal{D}$ with $k\le 6$. We prove that if $G$ is point-primitive then $G$ is of affine or almost simple type. If $G$ is point-imprimitive then $\mathcal{D}$ is a $3$-$(16,6,λ)$ design with $λ\in\{4, 12, 16, 24, 28, 48, 56, 64, 84, 96, 112, 140\}$, and $rank(G)=3$.

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。

↑