由平均阶刻画A_5
群论
2023-03-13 v1
摘要
设o(G)为有限群G的平均阶。M. Herzog、P. Longobardi与M. Maj证明了若G不可解且o(G)=o(A_5),则G≅A_5。在本注记中,我们证明对任意有限可解群G,等式o(G)=o(A_5)均不成立。由此,在同构意义下,A_5由其平均阶所决定。
引用
@article{arxiv.2303.05881,
title = {A characterization of $A_5$ by its average order},
author = {Marius Tărnăuceanu},
journal= {arXiv preprint arXiv:2303.05881},
year = {2023}
}