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arXiv 2203.05935math.ACmath.AG
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二维正规局部环上滤子的解析展开

Analytic spread of filtrations on two dimensional normal local rings

Steven Dale Cutkosky

摘要:

本文证明了McAdam关于Noether局部环中理想的解析展开的一个经典定理对于二维正规优良局部环$R$上的除滤仍然成立,并且证明了$R$上的除滤的纤维锥的Hilbert多项式有一个Hilbert函数,它是一个线性多项式与一个有界函数之和.我们证明了这些定理,首先研究的渐近性质的因子的奇点的分解的$R$的频谱。理想的符号幂的过滤是除法过滤的一个例子。除滤通常不是诺特的,在理想幂滤和除滤的经典情况下给出了显著的区别。

英文摘要:

In this paper we prove that a classical theorem by McAdam about the analytic spread of an ideal in a Noetherian local ring continues to be true for divisorial filtrations on a two dimensional normal excellent local ring $R$, and that the Hilbert polynomial of the fiber cone of a divisorial filtration on $R$ has a Hilbert function which is the sum of a linear polynomial and a bounded function. We prove these theorems by first studying asymptotic properties of divisors on a resolution of singularities of the spectrum of $R$. The filtration of the symbolic powers of an ideal is an example of a divisorial filtration. Divisorial filtrations are often not Noetherian, giving a significant difference in the classical case of filtrations of powers of ideals and divisorial filtrations.

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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