扭曲Grassmann图是某个设计的区组图
组合数学
2017-10-20 v2
摘要
本文中,我们证明了由van Dam和Koolen构造的扭曲Grassmann图是Jungnickel和Tonchev构造的某个设计的区组图。我们还证明了该设计的全自同构群与扭曲Grassmann图的全自同构群同构。
关键词
引用
@article{arxiv.0906.4509,
title = {The twisted Grassmann graph is the block graph of a design},
author = {Akihiro Munemasa and Vladimir D. Tonchev},
journal= {arXiv preprint arXiv:0906.4509},
year = {2017}
}
备注
5 pages. A section on the automorphism group has been added