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arXiv 1604.04425math.AG
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一类含射影曲线的奇异二次曲面

Variety of Singular Quadrics Containing a Projective Curve

İrfan Kadıköylü

摘要:

本文研究了含一般射影曲线的秩$\leq k$二次曲面的簇,证明了它在$g-d+r\leq 1$范围内具有期望维数。通过考虑这个期望不成立的位点,我们在$\overline{\mathcal{M}}_{g,n}$中构造了新的除数类。我们使用其中一个类来说明$\overline{\mathcal{M}}_{15,9}$是通用类型。

英文摘要:

We study the variety of rank $\leq k$ quadrics containing a general projective curve and show that it has the expected dimension in the range $g-d+r\leq 1$. By considering the loci where this expectation is not true, we construct new divisor classes in $\overline{\mathcal{M}}_{g,n}$. We use one of these classes to show that $\overline{\mathcal{M}}_{15,9}$ is of general type.

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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