arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1806.04873math.AG
收藏

对称三次四重的模空间与局部对称簇

Moduli Spaces of Symmetric Cubic Fourfolds and Locally Symmetric Varieties

Chenglong Yu, Zhiwei Zheng

摘要:

本文将具有特定自同构群的三次四重体的模空间实现为复双曲球或IV型对称域的算术代数,并研究了它们的紧化.我们的结果主要依赖于关于三次四重模空间的著名工作,包括Voisin([Voi86])证明的整体Torelli定理以及Laza([Laz09,Laz10])和Looijenga([Loo09])分别给出的周期映射象的特征.我们研究紧化的关键输入是Looijenga紧化的函性,我们在附录(A节)中制定。附录也可用于研究奇异K3曲面和三次四重曲面的模空间,这将出现在后续的论文中。

英文摘要:

In this paper we realize the moduli spaces of cubic fourfolds with specified automorphism groups as arithmetic quotients of complex hyperbolic balls or type IV symmetric domains, and study their compactifications. Our results mainly depend on the well-known works about moduli space of cubic fourfolds, including the global Torelli theorem proved by Voisin ([Voi86]) and the characterization of the image of the period map, which is given by Laza ([Laz09, Laz10]) and Looijenga ([Loo09]) independently. The key input for our study of compactifications is the functoriality of Looijenga compactifications, which we formulate in the appendix (section A). The appendix can also be applied to study the moduli spaces of singular K3 surfaces and cubic fourfolds, which will appear in a subsequent 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。

↑