Groups having 12 cyclic subgroups

Fuente: arXiv
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Autores principales: Sharma, Khyati, Reddy, A. Satyanarayana
Formato: Preprint
Publicado: 2022
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author Sharma, Khyati
Reddy, A. Satyanarayana
author_facet Sharma, Khyati
Reddy, A. Satyanarayana
contents A finite group is said to be $n$-cyclic if it contains $n$ cyclic subgroups. For a finite group $G$, the ratio of the number of cyclic subgroups to the number of subgroups is known as the cyclicity degree of the group $G$ and is denoted by $cdeg (G)$. In this paper, we classify all $12$-cyclic groups. We also prove that the set of cyclicity degrees for all the finite groups is dense in $[0,1]$, which gives a solution to the problem asked by Tărnăuceanu and Tóth in [20] "For every $a\in [0, 1]$, does there exist a sequence $(G_n)$ of finite groups such that $\lim_{n\to\infty} cdeg(G_n)=a$ "?
format Preprint
id arxiv_https___arxiv_org_abs_2210_11788
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Groups having 12 cyclic subgroups
Sharma, Khyati
Reddy, A. Satyanarayana
Combinatorics
Group Theory
20D60, 20D25, 20D20
A finite group is said to be $n$-cyclic if it contains $n$ cyclic subgroups. For a finite group $G$, the ratio of the number of cyclic subgroups to the number of subgroups is known as the cyclicity degree of the group $G$ and is denoted by $cdeg (G)$. In this paper, we classify all $12$-cyclic groups. We also prove that the set of cyclicity degrees for all the finite groups is dense in $[0,1]$, which gives a solution to the problem asked by Tărnăuceanu and Tóth in [20] "For every $a\in [0, 1]$, does there exist a sequence $(G_n)$ of finite groups such that $\lim_{n\to\infty} cdeg(G_n)=a$ "?
title Groups having 12 cyclic subgroups
topic Combinatorics
Group Theory
20D60, 20D25, 20D20
url https://arxiv.org/abs/2210.11788