Asian-European Journal of Mathematics, Volume (17), No (2), Year (2024-2)

Title : ( On the unitary one matching Bi-Cayley graph over finite rings )

Authors: fa shahini , Kazem Khashyarmanesh ,

Access to full-text not allowed by authors

Citation: BibTeX | EndNote

Abstract

‎Let $R$ be a finite ring (with non-zero identity) and let $ Bi(G_{R}),$ denote the unitary one-matching bi-Caylay graph over $R.$ In this paper‎, ‎we calculate the chromatic‎, ‎edge chromatic‎, ‎clique and independent numbers of $Bi(G_{R})$ and we show that the graph $Bi(G_{R})$ is a strongly regular graph if and only if $ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\vert R \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\vert =2$‎. ‎Also‎, ‎we study the perfectness of $Bi(G_{R}).$ Moreover‎, ‎we prove that if $Bi(G_{R})\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\cong Bi(G_{S})$ and $ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\omega (G_{R})\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\neq 2,$ then $G_{R}\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\cong G_{S}$ and $Bi(G_{R/J_{R}})\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\cong Bi(G_{S/J_S})$‎, ‎where‎ $J_{R}$ and $J_{S}$ are jacobson radicals of $R$ and $S$‎, ‎respectively‎.‎Furthermore‎, ‎for‎ ‎a finite field $\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\F$ with $\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\F\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\neq\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\Z_{2}$ and a ring $S$‎, ‎we prove that if $Bi(G_{M_{n}(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\F)})\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\cong Bi(G_{S}),$ where $ n >1$ is an integer‎, ‎then $ S\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\cong M_{n}(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\F),$ and so $S$ is a semisimple ring‎.

Keywords

, Bi, Cayley graph; unitary one, matching bi, Cayley graph; unitary Cayley graph; finite ring; chromatic number; edge chromatic number; clique number; independent number; isomorphism
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1098042,
author = {Shahini, Fa and Khashyarmanesh, Kazem},
title = {On the unitary one matching Bi-Cayley graph over finite rings},
journal = {Asian-European Journal of Mathematics},
year = {2024},
volume = {17},
number = {2},
month = {February},
issn = {1793-5571},
keywords = {Bi-Cayley graph; unitary one-matching bi-Cayley graph; unitary Cayley graph; finite ring; chromatic number; edge chromatic number; clique number; independent number; isomorphism},
}

[Download]

%0 Journal Article
%T On the unitary one matching Bi-Cayley graph over finite rings
%A Shahini, Fa
%A Khashyarmanesh, Kazem
%J Asian-European Journal of Mathematics
%@ 1793-5571
%D 2024

[Download]