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arXiv 2407.09256math.AGmath.ATmath.NT
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特征 $p$ 中 Calabi-Yau 簇的形变与提升

Deformations and Lifts of Calabi-Yau Varieties in Characteristic $p$

Lukas Brantner, Lenny Taelman

AI总结:

本文用导出代数几何研究特征 $p$ 中 Calabi-Yau 簇的形变,证明 Bogomolov-Tian-Todorov 定理的混合特征类比,并给出普通 Calabi-Yau 簇到特征 $0$ 的典范提升,推广 Serre-Tate 定理。

摘要:

我们利用导出代数几何技术研究特征 $p$ 中 Calabi-Yau 簇的形变。我们证明了 Bogomolov-Tian-Todorov 定理(该定理指出特征 $0$ 中 Calabi-Yau 簇无阻碍)的混合特征类比,并证明了普通 Calabi-Yau 簇允许典范提升到特征 $0$,推广了关于普通阿贝尔簇的 Serre-Tate 定理。

英文摘要:

We study deformations of Calabi-Yau varieties in characteristic $p$ using techniques from derived algebraic geometry. We prove a mixed characteristic analogue of the Bogomolov-Tian-Todorov theorem (which states that Calabi-Yau varieties in characteristic $0$ are unobstructed), and we show that ordinary Calabi-Yau varieties admit canonical lifts to characteristic $0$, generalising the Serre-Tate theorem on ordinary abelian 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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