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arXiv 0904.3590math.AG
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自旋曲线和Scorza四次曲线

Spin curves and Scorza quartics

Hiromichi Takagi, Francesco Zucconi

摘要:

在前一篇文章中,我们在某些四次超曲面的幂和簇中构造了新的子簇。在本文中,我们表明,这些四次线符合斯科尔扎四次线的一般对三角曲线和无效的θ特性。在其他应用程序中,我们给一个肯定的答案的猜想Dolgachev和Kanev的存在的Scorza四次曲线的任何一般对曲线和无效的θ特性。我们也给出了三角偶自旋曲线的模空间的描述。对于亏格为4的曲线,我们将在下一篇文章中深化这一描述。

英文摘要:

In the previous paper, we construct new subvarieties in the varieties of power sums for certain quartic hypersurfaces. In this paper, we show that these quartics coincide with the Scorza quartics of general pairs of trigonal curves and ineffective theta characteristics. Among other applications, we give an affirmative answer to the conjecture of Dolgachev and Kanev on the existence of the Scorza quartics for any general pairs of curves and ineffective theta characteristics. We also give descriptions of the moduli spaces of trigonal even spin curves. For curves of genus 4, we deepen this description in the next paper.

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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