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zbMATH Open
Article
Data sources: zbMATH Open
MATHEMATICA SCANDINAVICA
Article . 1987 . Peer-reviewed
Data sources: Crossref
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Normal rings and local ideals.

Normal rings and local ideals
Authors: Parmenter, M.M.; Stewart, P.N.;

Normal rings and local ideals.

Abstract

A right ideal I of a ring R is local if \(x\in R\), \(\{x_ 1,...,x_ n\}\subseteq I\) and \((x-x_ 1)R(x-x_ 2)...(x-x_{n-1})R(x-x_ n)=0\) imply that \(x\in I\), and an ideal P of R is pseudoprime if P contains a prime ideal of R. A ring R is normal if x,y\(\in R\) and \(xRy=0\) imply that \(ann(x)+ann(y)=R\), and R is neocommutative if the product of any two finitely generated ideals is finitely generated. The following results are established: if R is a neocommutative ring with identity then (a) an ideal of R is local if and only if it is an intersection of pseudoprime ideals, and (b) if R is normal, then every right ideal is local, and if R is commutative and every principal ideal of R is local, then R is normal. These results generalize results established by \textit{J. C. Dyre} [Math. Scand. 50, 44-54 (1982; Zbl 0468.46016)]. Our assumption that R be neocommutative has been relaxed by \textit{G. Mason} and \textit{R. Raphael} [A propos des ideaux locaux: corrigendum et addendum, Ann. Sci. Math. Qué. (to appear)].

Country
Germany
Related Organizations
Keywords

finitely generated ideals, neocommutative ring, Structure and classification for modules, bimodules and ideals (except as in 16Gxx), direct sum decomposition and cancellation in associative algebras), normal ring, Article, principal ideal, intersection of pseudoprime ideals, 510.mathematics, local ideal, Ideals and multiplicative ideal theory in commutative rings, prime ideal, Modules, bimodules and ideals in associative algebras

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
Green
bronze