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arXiv 1102.1756math.AC
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一类强稳定理想的核公式

A Formula for the Core of Certain Strongly Stable Ideals

Bonnie Smith

摘要:

一个理想的核心是它的所有归约的交集。核心具有几何意义,例如,从它与伴随理想和乘子理想的联系。然而,一般来说,核心很难明确描述。本文研究了一类特殊的强稳定理想。我们证明了理想在这个家庭满足阿廷-永田财产,但不能满足其他更强的标准深度条件。然后,我们表明,有一个令人惊讶的简单的明确的公式,这些理想的核心。

英文摘要:

The core of an ideal is the intersection of all of its reductions. The core has geometric significance coming, for example, from its connection to adjoint and multiplier ideals. In general, though, the core is difficult to describe explicitly. In this paper, we investigate a particular family of strongly stable ideals. We prove that ideals in this family satisfy an Artin-Nagata property, yet fail to satisfy other, stronger standard depth conditions. We then show that there is a surprisingly simple explicit formula for the core of these ideals.

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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