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arXiv 1903.03054math.AG
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判别式为3,4,7的奇异K3曲面的几何

On the geometry of singular K3 surfaces with discriminant 3, 4 and 7

Taiki Takatsu

摘要:

给出了射影平面上判别式为3和4的奇异K3曲面的构造。根据它们分支轨迹的相似性,我们可以推广这种构造,得到一类K3曲面的三维模空间,它允许无穷自同构群。此外,我们表明,这些K3表面的特征在于在配置的奇异纤维和一个整体瓣,也在期间。

英文摘要:

We give construction of singular K3 surfaces with discriminant 3 and 4 as double coverings over the projective plane. Focusing on the similarities in their branching loci, we can generalize this construction, and obtain a three dimensional moduli space of certain K3 surfaces which admit infinite automorphism groups. Moreover, we show that these K3 surfaces are characterized in terms of the configuration of the singular fibres and a global section, and also in terms of periods.

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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