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arXiv 0911.3565math.ACmath.AG
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短Gorenstein局部环的Macaulay逆系统同构类

Isomorphism classes of short Gorenstein local rings via Macaulay's inverse system

Joan Elias, Maria Evelina Rossi

摘要:

本文利用Macaulay的逆系统研究了柱脚度为3的ArtinianGorenstein局部环的同构类.证明了它们的分类等价于三次$\mathbb P ^{n }$超曲面的射影分类。这是一个意想不到的结果,因为它减少了研究这类局部环的齐次情况。这个结果在关于点Hilbert格式$Hilb_d (\mathbb P^n)$的问题和关于局部环的Poincaré级数的合理性问题中有应用.

英文摘要:

In this paper we study the isomorphism classes of Artinian Gorenstein local rings with socle degree three by means of Macaulay's inverse system. We prove that their classification is equivalent to the projective classification of the hypersurfaces of $\mathbb P ^{n }$ of degree three. This is an unexpected result because it reduces the study of this class of local rings to the homogeneous case. The result has applications in problems concerning the punctual Hilbert scheme $Hilb_d (\mathbb P^n)$ and in relation to the problem of the rationality of the Poincaré series of local rings.

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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