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Localization of injective modules over valuation rings

Author(s): François Couchot
Journal: Proc. Amer. Math. Soc. 134 (2006), 1013-1017.
MSC (2000): Primary 13F30, 13C11
Posted: October 5, 2005
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Abstract: It is proved that $ E_J$ is injective if $ E$ is an injective module over a valuation ring $ R$, for each prime ideal $ J\ne Z$. Moreover, if $ E$ or $ Z$ is flat, then $ E_Z$ is injective, too. It follows that localizations of injective modules over h-local Prüfer domains are injective, too.

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Additional Information:

François Couchot
Affiliation: Laboratoire de Mathématiques Nicolas Oresme, CNRS UMR 6139, Département de Mathématiques et Mécanique, 14032 Caen cedex, France
Email: couchot@math.unicaen.fr

DOI: 10.1090/S0002-9939-05-08350-4
PII: S 0002-9939(05)08350-4
Keywords: Valuation ring, injective module, h-local domain, Pr\"ufer domain.
Received by editor(s): November 12, 2004
Posted: October 5, 2005
Communicated by: Bernd Ulrich
Copyright of article: Copyright 2005, American Mathematical Society

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