Results 31 to 40 of about 1,397,791 (213)

The Graph of Equivalence Classes of Zero Divisors [PDF]

open access: yesISRN Discrete Mathematics, 2014
We introduce a graph GE(L) of equivalence classes of zero divisors of a meet semilattice L with 0. The set of vertices of GE(L) are the equivalence classes of nonzero zero divisors of L and two vertices [x] and [y] are adjacent if and only if [x]∧[y]=[0]. It is proved that GE(L) is connected and either it contains a cycle of length 3 or GE(L)≅K2. It is
Vinayak Joshi   +2 more
openaire   +2 more sources

Perfect zero-divisor graphs

open access: yesDiscrete Mathematics, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Avinash Patil   +2 more
openaire   +2 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   +1 more source

The total zero-divisor graph of commutative rings [PDF]

open access: yes, 2018
In this paper we initiate the study of the total zero-divisor graphs over commutative rings with unity. These graphs are constructed by both relations that arise from the zero-divisor graph and from the total graph of a ring.
Đurić, Alen   +3 more
core   +1 more source

Ideal-based zero-divisor graph of MV-algebras [PDF]

open access: yes, 2023
Let $(A, \oplus, *, 0)$ be an MV-algebra, $(A, \odot, 0)$ be the associated commutative semigroup, and $I$ be an ideal of $A$. Define the ideal-based zero-divisor graph $\Gamma_{I}(A)$ of $A$ with respect to $I$ to be a simple graph with the set of ...
Gan, Aiping, Yang, Yichuan, Su, Huadong
core   +1 more source

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   +1 more source

Zero divisor graphs of semigroups

open access: yesJournal of Algebra, 2005
Let \(S\) be a commutative semigroup with \(0\). A simple graph \(G\) whose vertices are the nonzero zero divisors of \(S\) with two distinct vertices joined by an edge in case when their product in \(S\) is \(0\) is called the zero divisor graph of \(S\). In the paper some characterizations of graphs to be zero divisor graphs of a semigroup are given.
DeMeyer, Frank, DeMeyer, Lisa
openaire   +2 more sources

The n-zero-divisor graph of a commutative semigroup

open access: yes, 2022
Let S be a (multiplicative) commutative semigroup with 0, Z(S) the set of zero-divisors of S, and n a positive integer. The zero-divisor graph of S is the (simple) graph Γ(S) with vertices Z(S) ∗ = Z(S) \ {0}, and distinct vertices x and y are adjacent ...
Badawi, Ayman, Anderson, David F.
core   +1 more source

On bipartite zero-divisor graphs

open access: yesDiscrete Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dancheng Lu, Tongsuo Wu
openaire   +1 more source

When zero-divisor graphs are divisor graphs

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2017
Summary: Let \(R\) be a finite commutative principal ideal ring with unity. In this article, we prove that the zero-divisor graph \(\Gamma(R)\) is a divisor graph if and only if \(R\) is a local ring or it is a product of two local rings with at least one of them having diameter less than \(2\). We also prove that \(\Gamma(R)\) is a divisor graph.
Abu Osba, Emad, Alkam, Osama
openaire   +2 more sources

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