Modules with bounded spectra

Let R be a commutative ring with identity and let M be an R-module. We examine the situation where for each prime ideal ρof R the set of all ρ-prime submodules of M is finite. In case R is Noetherian and M is finitely generated, we prove that this condition is equivalent to there being a positive in...

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Veröffentlicht in:Communications in algebra 1998-01, Vol.26 (10), p.3403-3417
Hauptverfasser: McCasland, R.L., Moore, M.E., Smith, P.F.
Format: Artikel
Sprache:eng
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Zusammenfassung:Let R be a commutative ring with identity and let M be an R-module. We examine the situation where for each prime ideal ρof R the set of all ρ-prime submodules of M is finite. In case R is Noetherian and M is finitely generated, we prove that this condition is equivalent to there being a positive integer n such that for every prime ideal ρ of R, the number of ρ-prime submodules of Mis less than or equal to n. We further show that in this case, there is at most one ρ-prime submodule for all but finitely many prime ideals ρ of R.
ISSN:0092-7872
1532-4125
DOI:10.1080/00927879808826348