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Non-splitting of prime divisors

Published online by Cambridge University Press:  24 October 2008

Judith D. Sally
Affiliation:
Department of Mathematics, Northwestern University, U.S.A.

Extract

In this study of complete, or integrally closed, ideals in a two-dimensional regular local ring (R, m), Zariski established a one-to-one correspondence between prime divisors of R, i.e. rank 1 discrete valuations v birationally dominating R with residue field of transcendence degree 1 over R/m, and m-primary simple complete ideals Iv in R; cf. [17] and [18]. In this correspondence, the blow-up of such an ideal has unique exceptional prime and the localization at this prime is the valuation ring of a prime divisor of R. In this paper, we will study such ideals in a more general setting, so we begin by recalling some definitions and background results.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1988

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References

REFERENCES

[1]Abhyankar, S. S.. Nonsplitting of valuations in extensions of two dimensional regular local domains. Math. Ann. 170 (1967), 87144.Google Scholar
[2]Abhyankar, S. S.. On the valuations centered in a local domain. Amer. J. Math. 78 (1956), 321348.CrossRefGoogle Scholar
[3]Abhyankar, S. S. and Zariski, O.. Splitting of valuations in extensions of local domains. Proc. Nat. Acad. Sci. U.S.A. 41(1955), 8490.Google Scholar
[4]Endler, O.. Valuation Theory (Springer-Verlag, 1972).Google Scholar
[5]Göhner, H.. Semifactoriality and Muhly's condition (N) in two-dimensional local rings. J. Algebra 34 (1975), 403429.Google Scholar
[6]Huneke, C.. The primary components of and integral closures of ideals in 3-dimensional regular local rings, preprint.Google Scholar
[7]Katz, D.. On the number of minimal prime ideals in the completion of a local domain. Rocky Mountain J. Math. 16 (1986), 575578.Google Scholar
[8]Lipman, J.. Rational singularities with applications to algebraic surfaces and unique Factorization. Publ. Math. Inst. Hautes Etudes Sci. 36 (1969), 195279.Google Scholar
[9]Muhly, H. T. and Sakuma, M.. Asymptotic factorization of ideals. J. London Math. Soc. 38 (1963), 341350.Google Scholar
[10]Muhly, H. T.. On the existence of asymptotically irreducible ideals. J. London Math. Soc. 40 (1965), 99107.Google Scholar
[11]Nagata, M.. Local Rings (Interscience, 1962).Google Scholar
[12]Ostrowski, A.. Untersuchungen Zur arithmetischen Theorie der Körper. Math. Z. 39 (1934), 269404.Google Scholar
[13]Rees, D.. Valuations associated with ideals. II. J. London Math. Soc. 31(1956), 221228.Google Scholar
[14]Sally, J. D.. One-fibered ideals. Proc. Microprogram on Commutative Algebra, M.S.R.I., 1987 (to appear).Google Scholar
[15]Sally, J. D.. Regular overrings of regular local rings. Trans. Amer. Math. Soc. 171 (1972), 291300.CrossRefGoogle Scholar
[16]Samuel, P.. Some asymptotic properties of powers of ideals. Ann. of Math. 56 (1952), 1121.CrossRefGoogle Scholar
[17]Zariski, O.. Polynomial ideals defined by infinitely many base points. Amer. J. Math. 60 (1938), 151204.Google Scholar
[18]Zariski, O. and Samuel, P.. Commutative Algebra, vol. II (Van Nostrand, 1960).Google Scholar