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arXiv 2103.11334math.AC
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Hilbert系数与序列Cohen-Macaulay环

On Hilbert coefficients and sequentially Cohen-Macaulay rings

Kazuho Ozeki, Hoang Le Truong, Hoang Ngoc Yen

摘要:

本文研究了局部环中约化指数与Hilbert系数之间的关系。因此,本研究的主要结果提供了序列Cohen-Macaulay环的非参数理想的Hilbert系数的一个特征。作为主要定理的推论,我们得到了Gorenstein/Cohen-Macaulay环的参数理想的Chern系数的刻画。

英文摘要:

In this paper, we explore the relation between the index of reducibility and the Hilbert coefficients in local rings. Consequently, the main result of this study provides a characterization of a sequentially Cohen-Macaulay ring in terms of its Hilbert coefficients for non-parameter ideals. As corollaries to the main theorem, we obtain characterizations of a Gorenstein/Cohen-Macaulay ring in terms of its Chern coefficients for parameter ideals.

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