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arXiv 1007.4658math.AG
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将以局部域为中心的赋值扩展到形式完备

Extending a valuation centered in a local domain to the formal completion

F. J. Herrera Govantes, M. A. Olalla Acosta, M. Spivakovsky, B. Teissier

摘要:

设(R; m; k)是局部Noether整环,R_v是赋值环,控制R(不一定是双有理的).设v| K是v对K的限制;根据定义,v| K以R为中心。令\hat{R}表示R的m-adic完备化。在赋值论在交换代数和奇点研究中的应用中,人们经常被诱导用它的m-adic完备化\hat{R}代替R,用一个合适的扩张\hat{v}代替v,对于一个合适的素理想P,使得P \cap R =(0),它是\hat{R} /P的适当扩张。本文的目的是给,假设R是优秀的,一个系统的描述所有这样的扩展\hat{v},并确定某些类别的扩展是特别感兴趣的应用程序。

英文摘要:

Let (R; m; k) be a local noetherian domain with field of fractions K and R_v a valuation ring, dominating R (not necessarily birationally). Let v|K be the restriction of v to K; by definition, v|K is centered at R. Let \hat{R} denote the m-adic completion of R. In the applications of valuation theory to commutative algebra and the study of singularities, one is often induced to replace R by its m-adic completion \hat{R} and v by a suitable extension \hat{v} to \hat{R}/P for a suitably chosen prime ideal P, such that P \cap R = (0). The purpose of this paper is to give, assuming that R is excellent, a systematic description of all such extensions \hat{v} and to identify certain classes of extensions which are of particular interest for applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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