Results 31 to 40 of about 575,168 (177)

Directed zero-divisor graph and skew power series rings [PDF]

open access: yesTransactions on Combinatorics, 2018
‎Let $R$ be an associative ring with identity and $Z^{\ast}(R)$ be its set of non-zero zero-divisors‎. ‎Zero-divisor graphs of rings are well represented in the literature of commutative and non-commutative rings‎. ‎The directed zero-divisor graph of $R$‎
Ebrahim Hashemi   +2 more
doaj   +1 more source

Quotient Energy of Zero Divisor Graphs And Identity Graphs

open access: yesمجلة بغداد للعلوم, 2023
Consider the (p,q) simple connected graph . The sum absolute values of the spectrum of quotient matrix of a graph  make up the graph's quotient energy.
M. Lalitha Kumari   +2 more
doaj   +1 more source

Zero-divisor graphs of twisted partial skew generalized power series rings [PDF]

open access: yesArab Journal of Mathematical Sciences, 2022
Purpose – The aim of this paper is to investigate the relationship between the ring structure of the twisted partial skew generalized power series ring RG,≤;Θ and the corresponding structure of its zero-divisor graph Γ̅RG,≤;Θ. Design/methodology/approach
Mohammed H. Fahmy   +2 more
doaj   +1 more source

Singular spin structures and superstrings

open access: yesJournal of High Energy Physics, 2023
There are two main problems in finding the higher genus superstring measure. The first one is that for g ≥ 5 the super moduli space is not projected. Furthermore, the supermeasure is regular for g ≤ 11, a bound related to the source of singularities due ...
Marco Matone
doaj   +1 more source

BRAIDS, ORDERINGS AND ZERO DIVISORS [PDF]

open access: yesJournal of Knot Theory and Its Ramifications, 1998
We begin with the observation that the group algebras [Formula: see text] of Artin's braid groups have no zero divisors or nontrivial units. This follows from the recent discovery of Dehornoy that braids can be totally ordered by a relation < which is invariant under left multiplication.
Rolfsen, Dale, Zhu, Jun
openaire   +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

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

Signed Zero-Divisor Graph

open access: yesElectronic Notes in Discrete Mathematics, 2017
Abstract Let R be a finite commutative ring with unity ( 1 ≠ 0 ) and let Z ( R ) ⁎ be the set of non-zero zero-divisors of R. We associate a (simple) graph Γ ( R ) to R with vertices as elements of R and for distinct x , y ∈ R , the vertices x and y are adjacent if and only if xy = 0.
Deepa Sinha   +2 more
openaire   +1 more source

Distances in zero-divisor and total graphs from commutative rings–A survey

open access: yesAKCE International Journal of Graphs and Combinatorics, 2016
There are so many ways to construct graphs from algebraic structures. Most popular constructions are Cayley graphs, commuting graphs and non-commuting graphs from finite groups and zero-divisor graphs and total graphs from commutative rings.
T. Tamizh Chelvam, T. Asir
doaj   +1 more source

McCoy rings and zero-divisors

open access: yesJournal of Pure and Applied Algebra, 2008
Let \(R[x]\) be a polynomial ring over a ring \(R\). Then \(R\) is called a right McCoy (respectively left McCoy) ring if \(f(x)g(x)=0\) for each \(f(x),g(x)\neq 0\in R[x]\) implies that \((f(x))r=0\) for some \(r\neq 0\in R\) (respectively \(rg(x)=0\)), a McCoy ring is both left and right McCoy. The authors show some standard ring theoretic properties
Camillo, Victor, Nielsen, Pace P.
openaire   +2 more sources

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