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arXiv 0710.5329math.AG
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通过中间雅可比行列式的退化得到三次三折的模空间

The moduli space of cubic threefolds via degenerations of the intermediate Jacobian

Sebastian Casalaina-Martin, Radu Laza

摘要:

Clemens和Griffiths的一个著名的结果是,光滑三次三重可以从其中间雅可比矩阵恢复。本文讨论了这类阿贝尔簇的可能退化,从而给出了用这种方法得到的三次三重模空间的紧化的描述。这种紧化与Allcock-Carlson-Toledo和Looijenga-Swierstra的工作中构造的紧化之间的关系也被考虑,并且在精神上类似于低亏格曲线的模空间的各种紧化之间的关系。

英文摘要:

A well known result of Clemens and Griffiths says that a smooth cubic threefold can be recovered from its intermediate Jacobian. In this paper we discuss the possible degenerations of these abelian varieties, and thus give a description of the compactification of the moduli space of cubic threefolds obtained in this way. The relation between this compactification and those constructed in the work of Allcock-Carlson-Toledo and Looijenga-Swierstra is also considered, and is similar in spirit to the relation between the various compactifications of the moduli spaces of low genus curves.

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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