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arXiv 1301.7262math.AG
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在K3曲面中嵌入点曲线

Embedding pointed curves in K3 surfaces

Brendan Hassett, Yuri Tschinkel

摘要:

我们分析了从点曲线到K3曲面的态射,并给出了一个特殊的有理曲线,使得标记点被带到有理曲线上,也许具有特定的交比。这建立在Mukai等人通过非阿贝尔Brill-Noether理论将曲线嵌入K3曲面的工作基础上。我们的研究自然会导致枚举问题,我们在几个具体情况下解决。这些应用程序的存在部分del Pezzo纤维与规定的不变量。

英文摘要:

We analyze morphisms from pointed curves to K3 surfaces with a distinguished rational curve, such that the marked points are taken to the rational curve, perhaps with specified cross ratios. This builds on work of Mukai and others characterizing embeddings of curves into K3 surfaces via non-abelian Brill-Noether theory. Our study leads naturally to enumerative problems, which we solve in several specific cases. These have applications to the existence of sections of del Pezzo fibrations with prescribed invariants.

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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