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Reduction of modules

Published online by Cambridge University Press:  24 October 2008

D. Rees
Affiliation:
6 Hillcrest Park, Exeter EX4 4SH

Extract

The notion of a reduction of an ideal I of a noetherian ring R and the related notions of the integral closure I* of I in R and the integral dependence of an element x of R on I have proved useful in many situations in commutative algebra. The purpose of this paper is to extend these notions to modules. To motivate the definitions which follow, it will be useful to consider these notions for ideals before extending them to modules.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1987

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References

REFERENCES

[1]Bourbaki, N.. Algèbre Commutative (Hermann, 19611965).Google Scholar
[2]de Concini, C., Eisenbud, D. and Procesi, C.. Young diagrams and determinantal varieties. Invent. Math. 56 (1980), 129165.CrossRefGoogle Scholar
[3]Hochster, M.. Grassmannians and their Schubert sub-varieties are arithmetically Cohen–Macaulay. J. Algebra 25 (1973), 4057.CrossRefGoogle Scholar
[4]Rouge, W. and Pedoe, D.. Methods of Algebraic Geometry (Cambridge University Press, 1952).Google Scholar
[5]Igusa, J.-I.. On the arithmetic normality of the Grassmann variety. Proc. Nat. Acad. Sci. (U.S.A.) 40 (1954), 309313.CrossRefGoogle ScholarPubMed
[6]McAdam, S.. Asymptotic Prime Divisors. Lecture Notes in Mathematics, no. 1023 (Springer-Verlag, 1983).CrossRefGoogle Scholar
[7]Nagata, M.. Local Rings (Interscience, 1962).Google Scholar
[8]Northcott, B. O. and Rees, D.. Reductions of ideals in local rings. Proc. Cambridge Philos. Soc. 50 (1954), 145158.CrossRefGoogle Scholar
[9]Ooishi, A.. Asymptotic properties, pseudo-flatness and reductions of graded algebras. Preprint (Hiroshima University) 1984.Google Scholar
[10]Rees, D.. Valuations associated with ideals: II. J. London Math. Soc. 31 (1956), 221228.CrossRefGoogle Scholar
[11]Rees, D.. A note on asymptotically unmixed ideals. Math. Proc. Cambridge Philos. Soc. 98 (1985), 3335.CrossRefGoogle Scholar
[12]Zariski, O. and Samuel, P.. Commutative Algebra, vols. I and ii (Van Nostrand, 1958 and 1960).Google Scholar