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arXiv 0709.2290math.AG
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利用对数简并数据II实现镜像对称

Mirror Symmetry via Logarithmic Degeneration Data II

Mark Gross, Bernd Siebert

摘要:

本文继续作者的程序研究镜像对称通过日志几何和环面退化,与奇点,日志卡拉比-姚空间,和环面退化的卡拉比-姚。本文的主要目的是计算与具有奇点B的仿射流形相关联的Calabi-Yau簇的上同调。我们证明了与B相关的Calabi-Yau的Dolbeault上同调群可以用B上层的上同调群来描述。首先通过计算与B相关的对数Calabi-Yau空间上的log de Rham和log Dolbeault上同调群证明了这一点,然后证明了在我们的对数设置下上同调的基变定理。作为应用,这表明,我们的镜像对称建设通过勒让德对偶的仿射流形的结果在通常的交换霍奇数预期镜像对称,并给出了明确的描述的单值的平滑。

英文摘要:

This paper continues the authors' program of studying mirror symmetry via log geometry and toric degenerations, relating affine manifolds with singularities, log Calabi-Yau spaces, and toric degenerations of Calabi-Yaus. The main focus of this paper is the calculation of the cohomology of a Calabi-Yau variety associated to a given affine manifold with singularities B. We show that the Dolbeault cohomology groups of the Calabi-Yau associated to B are described in terms of some cohomology groups of sheaves on B, as expected. This is proved first by calculating the log de Rham and log Dolbeault cohomology groups on the log Calabi-Yau space associated to B, and then proving a base-change theorem for cohomology in our logarithmic setting. As applications, this shows that our mirror symmetry construction via Legendre duality of affine manifolds results in the usual interchange of Hodge numbers expected in mirror symmetry, and gives an explicit description of the monodromy of a smoothing.

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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