Results 11 to 20 of about 3,703 (248)

Brown-McCoy Radical in Restricted Graded Version [PDF]

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2022
Some conjectures related to the radical theory of rings are still open. Hence, the research on the radical theory of rings is still being investigated by some prominent authors.
Puguh Wahyu Prasetyo
doaj   +2 more sources

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.
core   +4 more sources

Vaginal rings for delivery of HIV microbicides

open access: yesInternational Journal of Women's Health, 2012
R Karl Malcolm, Susan M Fetherston, Clare F McCoy, Peter Boyd, Ian MajorSchool of Pharmacy, Queen's University Belfast, Belfast, UKAbstract: Following the successful development of long-acting steroid-releasing vaginal ring devices for the ...
McCoy CF   +4 more
doaj   +1 more source

A question on McCoy rings [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2007
Nelsen [J. Algebra 298 (2006) 134–141] asked whether there is a natural class of McCoy rings which includes all reversible rings and all rings R such that R[X] is semi-commutative. In this paper, some new equivalent conditions of McCoy rings are given. One of them is used to answer this question in the affirmative. Finally, an example is given which is
Lei, Zhen, Chen, Jianlong, Ying, Zhiling
openaire   +2 more sources

Enumeration of some matrices and free linear codes over commutative finite local rings

open access: yesSpecial Matrices, 2021
Let R be a commutative finite local ring. Two enumeration problems over R are presented. We enumerate the matrices over R with a given McCoy rank and a given number of rows of single unit, and the free linear codes over R which have a given rank and a ...
Sirisuk Siripong
doaj   +1 more source

On a generalization of NC-McCoy rings [PDF]

open access: yesMiskolc Mathematical Notes, 2017
In the present paper we concentrate on a natural generalization of NC-McCoy rings that is called J-McCoy and investigate their properties. We prove that local rings are J-McCoy. Also, for an abelian ring R, we show that R is J-McCoy if and only if eR is J-McCoy, where e is an idempotent element of R.
Sahebi, Shervin   +2 more
openaire   +3 more sources

Countably McCoy rings

open access: yesHacettepe Journal of Mathematics and Statistics, 2022
The main goal of this paper is to study the class of countably $\mathcal {A}$-rings (or the countably McCoy rings) introduced by T. Lucas in [The diameter of a zero divisor graph, J. Algebra 301, 174-193, 2006] which turns out to lie properly between the class of $ \mathcal{A}$-rings (or McCoy rings) and the class of total-$\mathcal{A}$-rings. Also, we
Samir BOUCHİBA   +2 more
openaire   +4 more sources

Composite Hurwitz Rings as PF-Rings and PP-Rings

open access: yesMathematics, 2020
Let R ⊆ T be an extension of commutative rings with identity and H ( R , T ) (respectively, h ( R , T ) ) the composite Hurwitz series ring (respectively, composite Hurwitz polynomial ring).
Dong Kyu Kim, Jung Wook Lim
doaj   +1 more source

Structural basis for the RING-catalyzed synthesis of K63-linked ubiquitin chains [PDF]

open access: yes, 2015
This work was supported by grants from Cancer Research UK (C434/A13067), the Wellcome Trust (098391/Z/12/Z) and Biotechnology and Biological Sciences Research Council (BB/J016004/1).The RING E3 ligase catalysed formation of lysine 63 linked ubiquitin ...
Naismith, Jim   +12 more
core   +1 more source

On weak α-skew McCoy rings

open access: yesPublications de l'Institut Mathematique, 2014
Let ? be an endomorphism of a ring R. We introduce the notion of weak ?-skew McCoy rings which are a generalization of the ?-skew McCoy rings and the weak McCo rings. Some properties of this generalization are established, and connections of properties of a weak ?-skew McCoy ring R with n ? n upper triangular Tn(R) are investigated.
Nikmehr, M. J., Nejati, A., Deldar, M.
openaire   +2 more sources

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