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arXiv 1609.04650math.AC
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格林定理与Gorenstein序列

Green's theorem and Gorenstein sequences

Jeaman Ahn, Juan C. Migliore, Yong-Su Shin

摘要:

研究了标准分次代数的格林超平面限制定理中极值行为的推论。首先,我们将定理4从平面曲线的情形推广到线性空间中的超曲面的情形。第二,假设一定的Lefschetz条件,我们给出了一个连接到麦考利定理的极值行为。我们应用这些结果表明,$(1,19,17,19,1)$是不是一个Gorenstein序列,因此,我们分类的形式$(1,a,a-2,a,1)$的序列是Gorenstein序列。

英文摘要:

We study consequences, for a standard graded algebra, of extremal behavior in Green's Hyperplane Restriction Theorem. First, we extend his Theorem 4 from the case of a plane curve to the case of a hypersurface in a linear space. Second, assuming a certain Lefschetz condition, we give a connection to extremal behavior in Macaulay's theorem. We apply these results to show that $(1,19,17,19,1)$ is not a Gorenstein sequence, and as a result we classify the sequences of the form $(1,a,a-2,a,1)$ that are Gorenstein sequences.

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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