Results 1 to 10 of about 187,447 (246)

On p.p.-rings which are reduced [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
Denote the 2×2 upper triangular matrix rings over ℤ and ℤp by UTM2(ℤ) and UTM2(ℤp), respectively. We prove that if a ring R is a p.p.-ring, then R is reduced if and only if R does not contain any subrings isomorphic to UTM2(ℤ) or UTM2(ℤp).
Xiaojiang Guo, K. P. Shum
doaj   +4 more sources

Reduced p.p.-rings without identity [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We give some necessary and sufficient conditions for p.p.-rings without identity to be reduced. Our results strengthen and extend the results of Fraser and Nicholson as well as some recent results we obtained on reduced p.p.-rings with identity.
Xiaojiang Guo, K. P. Shum
doaj   +4 more sources

Near-rings that reduce to rings [PDF]

open access: diamondBulletin of the Australian Mathematical Society, 1977
It is shown that a near-ring is a ring if it is generated by a group of automorphisms of its additive group that contains all inner automorphisms.
Stuart D. Scott
openalex   +3 more sources

Armendariz Rings and Reduced Rings

open access: yesJournal of Algebra, 2000
According to \textit{D. D. Anderson} and \textit{V. Camillo} [Commun. Algebra 26, No. 7, 2265-2272 (1998; Zbl 0915.13001)], a ring \(R\) is called Armendariz if whenever polynomials \(f(x)=a_0+a_1x+\cdots+a_m x^m\) and \(g(x)=b_0+b_1x+\cdots+b_nx^n\) in \(R[x]\) satisfy \(f(x)g(x)=0\), then \(a_ib_j=0\) for each \(i\), \(j\). It is shown that if a ring

exaly   +3 more sources

Armendariz and Reduced Rings

open access: yesCommunications in Algebra, 2004
Abstract A ring R is called Armendariz if, whenever in R[x], a i b j  = 0 for all i and j. In this paper, some “relatively maximal” Armendariz subrings of matrix rings are identified, and a necessary and sufficient condition for a trivial extension to be Armendariz is obtained. Consequently, new families of Armendariz rings are presented.
Tsiu-Kwen Lee, Yiqiang Zhou
exaly   +2 more sources

Some Results on Reduced Rings

open access: yesمجلة بغداد للعلوم, 2008
The main purpose of this paper is to study some results concerning reduced ring with another concepts as semiprime ring ,prime ring,essential ideal ,derivations and homomorphism ,we give some results a bout that.
Baghdad Science Journal
doaj   +2 more sources

Coherently Radiating Periodic Structures for Feeding Concentric Rings Array with Reduced Number of Phase Shifters

open access: yesSensors, 2022
This paper presents the application of CORPS (coherently radiating periodic structures) for feeding CRA (concentric rings array) with a reduced number of phase shifters.
Brian Sanchez   +4 more
doaj   +3 more sources

On Commutative Reduced Baer Rings [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2004
It is shown that a commutative reduced ring R is a Baer ring if and only if it is a CS-ring; if and only if every dense subset of Spec (R) containing Max (R) is an extremally disconnected space; if and only if every non-zero ideal of R is essential in a ...
doaj   +1 more source

On Almost WJCP-Injective Rings [PDF]

open access: yesمجلة التربية والعلم, 2019
Let R be a ring. The ring  is called right almost WJCP-injective. If for any , (right non singular) there exists a left ideal  of  such that . In this paper, we give some characterization and properties of almost WJCP-injective rings, which are proper ...
Shaima Ahmed, Raed Mahmoud
doaj   +1 more source

On n - Regular Rings [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2011
As a generalization of regular rings, that is a ring is called n-regular if  for all . In this paper, we first  give  various properties of n-regular rings.
Raida Mahmood, Mohammed Youns
doaj   +1 more source

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