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arXiv 1102.3156math.AG
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有理正规涡卷上亏格为2的曲线的理想

The ideal of curves of genus 2 on rational normal scrolls

Andrea Hofmann

摘要:

给定嵌入P^(d-2)的亏格为2的平滑曲线,其上有一个d ≥ 6次的完全线性系,我们列出了C上由线性系g^1_2和g^1_3产生的所有类型的有理正规涡卷.此外,我们给出了嵌入P^(d-2)的亏格2的曲线的理想的描述,作为由C上唯一的g^1_2定义的二维涡卷的理想和由C上的g^1_3产生的三维涡卷的理想的和,并且不包含由C上的g^1_2定义的涡卷。

英文摘要:

Given a smooth curve of genus 2 embedded in P^(d-2) with a complete linear system of degree d>=6, we list all types of rational normal scrolls arising from linear systems g^1_2 and g^1_3 on C. Furthermore, we give a description of the ideal of such a curve of genus 2 embedded in P^(d-2) as a sum of the ideal of the two-dimensional scroll defined by the unique g^1_2 on C and the ideal of a three-dimensional scroll arising from a g^1_3 on C and not containing the scroll defined by the g^1_2 on C.

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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