Results 11 to 20 of about 91,509 (288)

Regular divisor graph of finite commutative ring

open access: yesTikrit Journal of Pure Science, 2023
Let R be a finite commutative ring with identity 1. We introduce a new graph called regular divisor graph and denoted by . We classify the finite commutative ring to get a special graph and we are going to study some properties of this graph, clique ...
Payman Abbas Rashid, Hataw Saleem Rashid
doaj   +1 more source

Commutator rings [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2006
A ring is called a commutator ring if every element is a sum of additive commutators. In this note we give examples of such rings. In particular, we show that given any ring R, a right R-module N, and a nonempty set Ω, EndR(⌖ΩN) and EndR(ΠΩN) are commutator rings if and only if either Ω is infinite or EndR(N) is itself a commutator ring.
openaire   +3 more sources

Polyfunctions over commutative rings

open access: yesJournal of Algebra and Its Applications, 2022
A function [Formula: see text], where [Formula: see text] is a commutative ring with unit element, is called polyfunction if it admits a polynomial representative [Formula: see text]. Based on this notion, we introduce ring invariants which associate to [Formula: see text] the numbers [Formula: see text] and [Formula: see text], where [Formula: see ...
Specker, Ernst   +2 more
openaire   +2 more sources

Classifying birationally commutative projective surfaces [PDF]

open access: yes, 2009
Let R be a noetherian connected graded domain of Gelfand-Kirillov dimension 3 over an uncountable algebraically closed field. Suppose that the graded quotient ring of R is a skew-Laurent ring over a field; we say that R is a birationally commutative ...
Sierra, Susan J.
core   +1 more source

A first Catalgorithm? [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2018
We propose building a new PKC in a ring structure, the classification of rings being an open problem. The difficulty of the scheme is based on retrieving the eigenvalues of endomorphism on a finite type module over a non-commutative ring. It is resistant
Jean-François Geneste
doaj   +1 more source

On the Genus of the Idempotent Graph of a Finite Commutative Ring

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2021
Let R be a finite commutative ring with identity. The idempotent graph of R is the simple undirected graph I(R) with vertex set, the set of all nontrivial idempotents of R and two distinct vertices x and y are adjacent if and only if xy = 0.
Belsi G. Gold, Kavitha S., Selvakumar K.
doaj   +1 more source

Hosoya Polynomial, Wiener Index, Coloring and Planar of Annihilator Graph of Zn [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2020
Let R be a commutative ring with identity. We consider ΓB(R) an annihilator graph of the commutative ring R. In this paper, we find Hosoya polynomial, Wiener index, Coloring, and Planar annihilator graph of Zn denote ΓB(Zn) , with n= pm or n=pmq, where p,
Mohammed Ahmed   +2 more
doaj   +1 more source

On the Unit Graph of a Noncommutative Ring [PDF]

open access: yes, 2012
Let $R$ be a ring (not necessary commutative) with non-zero identity. The unit graph of $R$, denoted by $G(R)$, is a graph with elements of $R$ as its vertices and two distinct vertices $a$ and $b$ are adjacent if and only if $a+b$ is a unit element of ...
Akbari, S., Estaji, E., Khorsandi, M. R.
core   +1 more source

Three-Dimensional Manifolds, Skew-Gorenstein Rings and their Cohomology [PDF]

open access: yes, 2010
Graded skew-commutative rings occur often in practice. Here are two examples: 1) The cohomology ring of a compact three-dimensional manifold. 2) The cohomology ring of the complement of a hyperplane arrangement (the Orlik-Solomon algebra).
Dedicated To Ralf Fröberg   +1 more
core   +2 more sources

Polynomial Rings over Pseudovaluation Rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
Let R be a ring. Let σ be an automorphism of R. We define a σ-divided ring and prove the following. (1) Let R be a commutative pseudovaluation ring such that x∉P for any P∈Spec(R[x,σ]) . Then R[x,σ] is also a pseudovaluation ring.
V. K. Bhat
doaj   +1 more source

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