Results 21 to 30 of about 664,134 (330)
The Graph of Annihilating Ideals [PDF]
Let R be a commutative ring with identity and AG(R) be the set of ideals with non-zero annihilators. The annihilating ideal graph AG(R) is a graph of vertex set AG (R){(0)} and two distinct ideal vertices I and J are adjacent if and ...
Nazar Shuker, Fryad Abdulqadir
doaj +1 more source
On Almost Weakly np – injective Rings [PDF]
The ring R is called right almost weakly np –injective, if for any , there exists a positive integer n and a left ideal of R such that . In this paper, we give some characterization and properties of almost weakly np – injective rings.
Raida Mahmood, Amaar Ghaze
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Introduction: The diagnosis of vitiligo is mainly based on clinical findings. However, dermoscopy or reflectance confocal microscopy (RCM) could be useful for assessing its progression (stability, pigmentation, or depigmentation).
Juan Alberto Godínez-Chaparro +3 more
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Row reduced representations of behaviors over finite rings [PDF]
Row reduced representations of behaviors over fields posses a number of useful properties. Perhaps the most important feature is the predictable degree property. This property allows a finite parametrization of the module generated by the rows of the row
Kuijper, Margreta +2 more
core +3 more sources
On Generalized m-flat Modules [PDF]
Let I be a right (left) ideal of a ring R. Then R/I is a right (left) generalized m – flat modules (GmF – module) if and only if for each , there exist and a fixed positive integer m such that .
Zubayda Ibraheem, Maha Khalaf
doaj +1 more source
Relative Stability and Local Curvature Analysis in Carbon Nanotori [PDF]
We introduce a concise formalism to characterize nanometer-sized tori based on carbon nanotubes and to determine their stability by combining {\em ab initio} density functional calculations with a continuum elasticity theory approach that requires only ...
Chuang, Chern +5 more
core +2 more sources
Finitely generated abelian groups of units [PDF]
In 1960 Fuchs posed the problem of characterizing the groups which are the groups of units of commutative rings. In the following years, some partial answers have been given to this question in particular cases.
Del Corso, Ilaria
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Design and construction of a shield for the 9" x 9" NaI(Tl) well-type detector [PDF]
This paper describes a homemade lead, 15 cm-thick, cylindrical shaped shield of a 9" x 9" NaI(Tl) gamma spectrometric well-type detector. Commercially available lead was melted into cylindrical rings.
Hansman Jan
doaj +1 more source
ON COMMUTATIVE REDUCED FILIAL RINGS [PDF]
AbstractA ring in which every accessible subring is an ideal is called filial. We continue the study of commutative reduced filial rings started in [R. R. Andruszkiewicz and K. Pryszczepko, ‘A classification of commutative reduced filial rings’,Comm. Algebrato appear].
R. R. ANDRUSZKIEWICZ, K. PRYSZCZEPKO
openaire +1 more source
Rotating black rings on Taub-NUT [PDF]
In this paper, we construct new solutions describing rotating black rings on Taub-NUT using the inverse-scattering method. These are five-dimensional vacuum space-times, generalising the Emparan-Reall and extremal Pomeransky-Sen'kov black rings to a Taub-
AA Pomeransky +40 more
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