Semi-local formal fibers of minimal prime ideals of excellent reduced local rings

N. Arnosti, R. Karpman, C. Leverson, J. Levinson, S. Loepp

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Let T be a complete local (Noetherian) ring containing the rationals, and let C be a finite set of incomparable non-maximal prime ideals of T partitioned into m subsets C1,... , Cm. We find necessary and sufficient conditions for T to be the completion of an excellent reduced local ring A with precisely m minimal prime ideals J1,.. . , Jm such that, for each i = 1, 2,... , m, the maximal elements of the set {Q ε SpecT | Q ∩ A = Ji} are precisely the elements of Ci. We also find necessary and sufficient conditions for T to be the completion of such a ring A for the case where A need not be excellent.

Original languageEnglish (US)
Pages (from-to)29-56
Number of pages28
JournalJournal of Commutative Algebra
Volume4
Issue number1
DOIs
StatePublished - 2012
Externally publishedYes

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