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Prüfer domain (Definition)

A commutative integral domain $ R$ is a Prüfer domain if every finitely generated nonzero ideal $ I$ of $ R$ is invertible.

Let $ R_I$ denote the localization of $ R$ at $ R\backslash I$. Then the following statements are equivalent:

A Prüfer domain is a Dedekind domain if and only if it is Noetherian.

If $ R$ is a Prüfer domain with quotient field $ K$, then any domain $ S$ such that $ R\subset S\subset K$ is Prüfer.

Bibliography

1
Thomas W. Hungerford. Algebra. Springer-Verlag, 1974. New York, NY.



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See Also: valuation domain, Dedekind domain, Prüfer ring

Keywords:  valuation domain, Prüfer, Noetherian
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Cross-references: quotient field, Noetherian, Dedekind domain, maximal ideal, valuation domain, prime ideal, equivalent, localization, invertible, ideal, finitely generated, integral domain, commutative
There are 6 references to this entry.

This is version 5 of Prüfer domain, born on 2003-07-25, modified 2004-12-07.
Object id is 4507, canonical name is PruferDomain.
Accessed 2543 times total.

Classification:
AMS MSC16U10 (Associative rings and algebras :: Conditions on elements :: Integral domains)

Pending Errata and Addenda
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Prüfer domain by pahio on 2004-03-01 10:32:57

Hi! In the definition of Prüfer domain, it should be said that "every finitely generaten _non-zero_ ideal I of R is invertible"; secondly: " the localization of R at _R\I_".
 Sincerely
 Jussi 
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