Super commuting graphs of finite groups and their Zagreb indices

Fuente: arXiv
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Autores principales: Das, Shrabani, Nath, Rajat Kanti
Formato: Preprint
Publicado: 2024
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author Das, Shrabani
Nath, Rajat Kanti
author_facet Das, Shrabani
Nath, Rajat Kanti
contents Let $B$ be an equivalence relation defined on a finite group $G$. The $B$ super commuting graph on $G$ is a graph whose vertex set is $G$ and two distinct vertices $g$ and $h$ are adjacent if either $[g] = [h]$ or there exist $g' \in [g]$ and $h' \in [h]$ such that $g'$ commutes with $h'$, where $[g]$ is the $B$-equivalence class of $g \in G$. Considering $B$ as the equality, conjugacy and same order relations on $G$, in this article, we discuss the graph structures of equality/conjugacy/order super commuting graphs of certain well-known families of non-abelian groups viz. dihedral groups, dicyclic groups, semidihedral groups, quasidihedral groups, the groups $U_{6n}, V_{8n}, M_{2mn}$ etc. Further, we compute the Zagreb indices of these graphs and show that they satisfy Hansen-Vuki{č}evi{ć} conjecture.
format Preprint
id arxiv_https___arxiv_org_abs_2407_11297
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Super commuting graphs of finite groups and their Zagreb indices
Das, Shrabani
Nath, Rajat Kanti
Group Theory
Primary: 20D60, 20E45, Secondary: 05C25
Let $B$ be an equivalence relation defined on a finite group $G$. The $B$ super commuting graph on $G$ is a graph whose vertex set is $G$ and two distinct vertices $g$ and $h$ are adjacent if either $[g] = [h]$ or there exist $g' \in [g]$ and $h' \in [h]$ such that $g'$ commutes with $h'$, where $[g]$ is the $B$-equivalence class of $g \in G$. Considering $B$ as the equality, conjugacy and same order relations on $G$, in this article, we discuss the graph structures of equality/conjugacy/order super commuting graphs of certain well-known families of non-abelian groups viz. dihedral groups, dicyclic groups, semidihedral groups, quasidihedral groups, the groups $U_{6n}, V_{8n}, M_{2mn}$ etc. Further, we compute the Zagreb indices of these graphs and show that they satisfy Hansen-Vuki{č}evi{ć} conjecture.
title Super commuting graphs of finite groups and their Zagreb indices
topic Group Theory
Primary: 20D60, 20E45, Secondary: 05C25
url https://arxiv.org/abs/2407.11297