Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-13T06:52:50.605Z Has data issue: false hasContentIssue false

The integral closure need not be a Prüfer domain

Published online by Cambridge University Press:  26 February 2010

Robert Gilmer
Affiliation:
Florida State University, Tallahassee, Florida 32306.
Joseph F. Hoffmann
Affiliation:
Florida State University, Tallahassee, Florida 32306.
Get access

Extract

Recent years have witnessed a significant development of the theory of Prüfer domains; there are many known characterizations of such domains within the class of integral domains with identity or the class of integrally closed domains—for example, see [6; Exer. 12, p. 93] or [10; Chap. 4]. E. Bastida and R. Gilmer have recorded in [4] a number of open questions concerning Prüfer domains that are of the following form:

If D is an integral domain with identity with property E, is the integral closure of D a Prüfer domain?

Specifically, the questions listed by Bastida and Gilmer were first raised in [13], [11], [7], and [12].

Type
Research Article
Copyright
Copyright © University College London 1974

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Bass, H.. “Injective dimension in Noetherian rings”, Trans. Amer. Math. Soc., 102 (1962), 1829.Google Scholar
2.Bass, H.. “Torsion free and projective modules”, Trans. Amer. Math. Soc., 102 (1962), 319327.CrossRefGoogle Scholar
3.Bass, H.. “On the ubiquity of Gorenstein rings”, Math. Zeit., 82 (1963), 828.CrossRefGoogle Scholar
4.Bastida, E. and Gilmer, R.. “Overrings and divisorial ideals of rings of the form D+M”, Mich. Math. J., 20 (1973), 7995.Google Scholar
5.Berger, R.. “Über eine Klasse unvergabelter lokaler Ringe”, Math. Ann., 146 (1962), 98102.CrossRefGoogle Scholar
6.Bourbaki, N.. Elements de Mathematique, Algebre commutative, Chapitre VII, Diviseurs (Hermann, Paris, 1965).Google Scholar
7.Brewer, J. W. and Gilmer, R.. “Integral domains whose overrings are ideal transforms”, Math. Nachr., 51 (1971), 255267.CrossRefGoogle Scholar
8.Fossum, R.. The divisor class group of a Krull domain (Springer-Verlag, New York, 1973).Google Scholar
9.Gilmer, R.. Multiplicative ideal theory (Queen's University, Kingston, Ontario, Canada, 1968).Google Scholar
10.Gilmer, R.. Multiplicative ideal theory (Marcel-Dekker, New York, 1972).Google Scholar
11.Gilmer, R. and Heinzer, W.. “Intersections of quotient rings of an integral domain”, J. Math. Kyoto Univ., 7 (1967), 133150.Google Scholar
12.Heinzer, W.. “Integral domains in which each nonzero ideal is divisorial”, Mathematika, 15 (1968), 164170.Google Scholar
13.Heinzer, W.. “Quotient overrings of integral domains”, Mathematika, 17 (1970), 139148.CrossRefGoogle Scholar