The Number of Subgroup Chains of Finite Nilpotent Groups

In this paper, we mainly count the number of subgroup chains of a finite nilpotent group. We derive a recursive formula that reduces the counting problem to that of finite <i>p</i>-groups. As applications of our main result, the classification problem of distinct fuzzy subgroups of finit...

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Bibliographic Details
Main Authors: Lingling Han, Xiuyun Guo
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/12/9/1537
Description
Summary:In this paper, we mainly count the number of subgroup chains of a finite nilpotent group. We derive a recursive formula that reduces the counting problem to that of finite <i>p</i>-groups. As applications of our main result, the classification problem of distinct fuzzy subgroups of finite abelian groups is reduced to that of finite abelian <i>p</i>-groups. In particular, an explicit recursive formula for the number of distinct fuzzy subgroups of a finite abelian group whose Sylow subgroups are cyclic groups or elementary abelian groups is given.
ISSN:2073-8994