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arXiv 2005.05582math.AG
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Fano复曲面簇中Calabi-Yau流形的形变

Deformations of Calabi-Yau manifolds in Fano toric varieties

Gilberto Bini, Donatella Iacono

摘要:

在这篇文章中,我们研究的变形的Calabi-Yau流形$Z$在环面品种$F$,可能不光滑。特别地,我们证明了从$Z$在$F$中的无穷小变形的Hilbert函子$H^F_Z$到$Z$的无穷小变形的函子的遗忘态射是光滑的.这意味着$H^F_Z $在希尔伯特格式中的对应点处的光滑性。此外,我们给出了一些例子,并包括一些计算的Hodge数的Calabi-Yau流形的Fano复曲面簇。

英文摘要:

In this article, we investigate deformations of a Calabi-Yau manifold $Z$ in a toric variety $F$, possibly not smooth. In particular, we prove that the forgetful morphism from the Hilbert functor $H^F_Z$ of infinitesimal deformations of $Z$ in $F$ to the functor of infinitesimal deformations of $Z$ is smooth. This implies the smoothness of $H^F_Z $ at the corresponding point in the Hilbert scheme. Moreover, we give some examples and include some computations on the Hodge numbers of Calabi-Yau manifolds in Fano toric varieties.

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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