Results 31 to 40 of about 5,838,381 (260)

Stable range conditions for abelian and duo rings

open access: yesМатематичні Студії, 2022
The article deals with the following question: when does the classical ring of quotients of a duo ring exist and idempotents in the classical ring of quotients $Q_{Cl} (R)$ are there idempotents in $R$?
A. A. Dmytruk   +2 more
doaj   +1 more source

Chromatic Number and some Properties of Pseudo-Von Neumann Regular graph of Cartesian Product of Rings

open access: yesTikrit Journal of Pure Science, 2020
Let R be a commutative ring, the Pseudo – Von Neumann  regular graph of the ring R is define as a graph whose vertex set consists of all elements of R and any two distinct vertices a and b are adjacent if and only if , this graph is denoted by P-VG(R ...
Nermen J. Khalel, Nabeel E. Arif
doaj   +1 more source

Graded von Neumann regularity of rings graded by semigroups [PDF]

open access: yes, 2022
In this article, we give a complete characterization of semigroup graded rings which are graded von Neumann regular. We also demonstrate our results by applying them to several classes of examples, including matrix rings and groupoid graded rings.Comment:
Lännström, Daniel   +3 more
core   +1 more source

A characterization of graded von Neumann regular rings with applications to Leavitt path algebras

open access: yes, 2021
We prove a new characterization of graded von Neumann regular rings involving the recently introduced class of nearly epsilon-strongly graded rings. As our main application, we generalize Hazrat's result that Leavitt path algebras over fields are graded ...
Lännström, Daniel   +2 more
core   +1 more source

A-D3 Modules and A-D4 Modules

open access: yesJournal of Mathematics, 2023
Let A be a class of some right R-modules that is closed under isomorphisms, and let M be a right R-module. Then M is called A-D3 if, whenever N and K are direct summands of M with M=N+K and M/K∈A, then N∩K is also a direct summand of M; M is called an A ...
Zhanmin Zhu
doaj   +1 more source

Trivial Ring Extension of Suitable-Like Conditions and some properties [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2018
We investigate the transfer of the notion of suitable rings along with related concepts, such as potent and semipotent rings, in the general context of the trivial ring extension, then we put these results in use to enrich the literature with new ...
Khalid Adarbeh
doaj   +1 more source

On m-Regular Rings [PDF]

open access: yes, 2012
As a generalization of regular rings, we introduce the notion, of m-regular rings, that is for all , there is a fixed positive integer m such that  is a Von-Neumann regular element. Some characterization and basic properties of these rings will be given.
Zubayda Ibraheem, Maha Khalaf
core   +1 more source

Injective and coherent endomorphism rings relative to some matrices

open access: yesOpen Mathematics, 2023
Let MM be a right RR-module with S=End(MR)S={\rm{End}}\left({M}_{R}). Given two cardinal numbers α\alpha and β\beta and a row-finite matrix A∈RFMβ×α(S)A\in {{\rm{RFM}}}_{\beta \times \alpha }\left(S), SM{}_{S}M is called injective relative to AA if ...
Zeng Yuedi
doaj   +1 more source

On n-flat modules and n-Von Neumann regular rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We show that each R-module is n-flat (resp., weakly n-flat) if and only if R is an (n,n−1)-ring (resp., a weakly (n,n−1)-ring). We also give a new characterization of n-Von Neumann regular rings and a characterization of weak n-Von Neumann regular rings ...
Najib Mahdou
doaj   +1 more source

K1 of Von Neumann regular rings

open access: yesJournal of Pure and Applied Algebra, 1984
For certain rings and \(C^*\)-algebras R, the group \(K_ 1(R)\) is shown to equal the abelianization of the unit group U(R). For instance, this is proved for every \(C^*\)-algebra with unitary 1-stable range, for every \(AW^*\)-algebra, and for every unit-regular ring in which 2 is invertible.
Menal, Pere, Moncasi, Jaume
openaire   +2 more sources

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