Results 51 to 60 of about 60,182 (167)

On Strongly SITN Rings [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics
An element is considered as a strongly SITN, if it is the sum of idempotent, tripotent and a nilpotent, that commute with one another. A ring R is referred to be SITN ring if each member of R is a strongly SITN.
Rafal Dhanoon, Nazar Shuker
doaj   +1 more source

The strong nil-cleanness of semigroup rings

open access: yesOpen Mathematics, 2020
In this paper, we study the strong nil-cleanness of certain classes of semigroup rings. For a completely 0-simple semigroup M=ℳ0(G;I,Λ;P)M={ {\mathcal M} }^{0}(G;I,\text{Λ};P), we show that the contracted semigroup ring R0[M]{R}_{0}{[}M] is ...
Ji Yingdan
doaj   +1 more source

ON CLEAN LAURENT SERIES RINGS [PDF]

open access: yesJournal of the Australian Mathematical Society, 2013
AbstractHere we prove that, for a $2$-primal ring $R$, the Laurent series ring $R((x))$ is a clean ring if and only if $R$ is a semiregular ring with $J(R)$ nil. This disproves the claim in K. I. Sonin [‘Semiprime and semiperfect rings of Laurent series’, Math. Notes 60 (1996), 222–226] that the Laurent series ring over a clean ring is again clean.
Zhou, Yiqiang, Ziembowski, Michał
openaire   +2 more sources

On Weakly 2-Invo Clean Rings With Some Properties in Graph Theory

open access: yesInternational Journal of Mathematics and Mathematical Sciences
The concept of a weakly two-involution clean ring is presented; it is a generalization of two-involution clean ring, which allows the addition of more elements to a ring, which will be observed in its graph theoretic representation.
Salim Ghadeer Salim   +2 more
doaj   +1 more source

Symmetrization in Clean and Nil-Clean Rings

open access: yesIzvestiya of Saratov University. New Series. Series: Mathematics. Mechanics. Informatics, 2020
A ring \(R\) is said to be \textsl{double nil-clean} or just \textsl{ D-nil-clean} for short if, for every \(a\in R\), there exists \(e\in (aRa)\cap Id(R)\) such that \(a=e+q\) for some \(q\in \mathrm{Nil}(R)\). Similarly, a ring \(R\) is said to be \textsl{double clean} or just \textsl{D-clean} for short if, for each \(a\in R\), there exists \(e\in ...
openaire   +2 more sources

Nil Clean Graphs of Rings [PDF]

open access: yesAlgebra Colloquium, 2017
In this article, we define the nil clean graph of a ring R. The vertex set is the ring R, and two ring elements a and b are adjacent if and only if a + b is nil clean in R. Graph theoretic properties like the girth, dominating sets, diameter, etc., of the nil clean graph are studied for finite commutative rings.
Basnet, Dhiren Kumar   +1 more
openaire   +2 more sources

Conditions when abelian clean Bezout ring is an elementary divisors ring (in Ukrainian) [PDF]

open access: yesМатематичні Студії, 2012
In the paper it is proved that the abelian clean Bezout ring is an elementary divisors ring, if and only if it is a duo-ring and shows that the projective-free right (left) Bezout ring is right (left) Hermite ring if his stable rank not more 2.
I. S. Vasyunyk
doaj  

Some properties of skew Hurwitz series

open access: yesLe Matematiche, 2014
In this paper we show that, if R is a ring and σ an endomorphism of R, then the skew Hurwitz series ring T = (HR, σ ) is an n-clean ring if and only if R is an n-clean ring.
A. M. Hassanein, Mohamed A. Farahat
doaj  

Thermochemistry and photochemistry of spiroketals derived from indan-2-one: Stepwise processes versus coarctate fragmentations

open access: yesBeilstein Journal of Organic Chemistry, 2013
Coarctate reactions are defined as reactions that include atoms at which two bonds are made and two bonds are broken simultaneously. In the pursuit of the discovery of new coarctate reactions we investigate the fragmentation reactions of cyclic ketals ...
Götz Bucher   +2 more
doaj   +1 more source

Tripotents: a class of strongly clean elements in rings

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018
Periodic elements in a ring generate special classes of strongly clean elements. In particular, elements b such that b = b3+, which are called tripotents and include idempotents, negative of idempotents and order 2 units, are strongly clean.
Călugăreanu Grigore
doaj   +1 more source

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