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arXiv 2510.04412math.AC
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单项式曲线与局部线性分解

Monomial curves and locally linear resolution

Takayuki Hibi, Peter Schenzel

AI总结:

本研究构造了诺特环中四元素对应的长度3、5的自由模复形并给出正合性判据,将其用于刻画光滑二次曲面上单项式曲线的Hartshorne–Rao模的极小自由分解,还提供了具任意高次数合冲的线性生成模实例。

摘要:

针对诺特环中的四个元素,我们通过明确描述自由模的同态,构造了长度为3(对应地,长度为5)的自由模复形,并给出了这些复形的正合性判据。作为应用,我们利用这些结果明确描述了光滑二次曲面上单项式曲线的Hartshorne–Rao模的极小自由分解,同时还给出了一个线性生成模的例子,该模具有任意高次数的合冲。

英文摘要:

For four elements of a Noetherian ring we construct complexes of free modules of length three (resp. five) by an explicit description of the homomorphisms of the free modules. We provide exactness criteria for them. As an application we use these results in order to describe explicit the minimal free resolution of the Hartshorne--Rao module of a monomial curve lying on a smooth quadric. Also it provides an example of linearly generated module with syzygies of arbitrary high degree.

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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