Results 11 to 20 of about 969 (214)

Induced subgraphs of zero-divisor graphs [PDF]

open access: yesDiscrete Mathematics, 2023
Funding: Peter J. Cameron acknowledges the Isaac Newton Institute for Mathematical Sciences, Cambridge, for support and hospitality during the programme Groups, representations and applications: new perspectives (supported by EPSRC grant no. EP/R014604/1)
Chelvam, T. Tamizh   +7 more
core   +5 more sources

Zero-divisor ideals and realizable zero-divisor graphs [PDF]

open access: yesInvolve, a Journal of Mathematics, 2009
We seek to classify the sets of zero-divisors that form ideals based on their zero-divisor graphs. We offer full classification of these ideals within finite commutative rings with identity. We also provide various results concerning the realizability of
Stickles, Joe   +2 more
core   +4 more sources

A class of zero divisor rings in which every graph is precisely the union of a complete graph and a complete bipartite graph

open access: yesOpen Mathematics, 2015
Recently, an interest is developed in estimating genus of the zero-divisor graph of a ring. In this note we investigate genera of graphs of a class of zero-divisor rings (a ring in which every element is a zero divisor).
Nauman Syed Khalid, Shafee Basmah H.
doaj   +2 more sources

Sub-semigroups determined by the zero-divisor graph

open access: yesDiscrete Mathematics, 2008
In this paper we study sub-semigroups of a finite or an infinite zero-divisor semigroup S determined by properties of the zero-divisor graph Γ(S). We use these sub-semigroups to study the correspondence between zero-divisor semigroups and zero-divisor ...
Tongsuo Wu, Dancheng Lu
exaly   +2 more sources

Some results on the total zero-divisor graph of a commutative ring [PDF]

open access: yesArab Journal of Mathematical Sciences
PurposeThe purpose of this paper is to characterize a commutative ring R with identity which is not an integral domain such that ZT(R), the total zero-divisor graph of R is connected and to determine the diameter and radius of ZT(R) whenever ZT(R) is ...
Subramanian Visweswaran
doaj   +2 more sources

On Domination in Zero-Divisor Graphs

open access: yesCanadian Mathematical Bulletin, 2013
We first determine the domination number for the zero-divisor graph of the product of two commutative rings with 1. We then calculate the domination number for the zero-divisor graph of any commutative artinian ring.
Doost Ali Mojdeh   +2 more
core   +2 more sources

The Zero Divisor Graph of the Ring Z_(2^2 p)

open access: yesARO-The Scientific Journal of Koya University, 2016
In this paper, we consider the crossing number and the chromatic number of the zero divisor graph Γ(Z_(2^2 p)) to show that this type of zero divisor graphs is bipartite graph, and the smallest cycle in Γ(Z_(2^2 p)) is of length four this implies that ...
Nazar H. Shuker, Payman A. Rashed
doaj   +2 more sources

Zero divisor graphs of semigroups

open access: yesJournal of Algebra, 2005
The zero divisor graph of a commutative semigroup with zero is a graph whose vertices are the nonzero zero divisors of the semigroup, with two distinct vertices joined by an edge in case their product in the semigroup is zero.
DeMeyer, Lisa, DeMeyer, Frank
core   +3 more sources

Frequency Assignment Model of Zero Divisor Graph [PDF]

open access: yesJournal of Applied Mathematics, 2021
Given a frequency assignment network model is a zero divisor graph Γ=V,E of commutative ring Rη, in this model, each node is considered to be a channel and their labelings are said to be the frequencies, which are assigned by the L2,1 and L3,2,1 labeling
R. Radha, N. Mohamed Rilwan
doaj   +2 more sources

Zero-divisor graphs and zero-divisor functors

open access: yesJournal of Algebra and Its Applications, 2023
Inspired by a very recent work of A. Đurić, S. Jevđenić and N. Stopar, we introduce a new definition of zero-divisor graphs attached to rings that includes all of the classical definitions already known in the literature. We provide an interpretation of such graphs by means of a functor that we call zero-divisor functor and which is associated with a ...
Enrico Sbarra, Maurizio Zanardo
openaire   +3 more sources

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