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arXiv 2210.05166math.AGmath.NT
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阿贝尔簇上子簇族的单值性

The monodromy of families of subvarieties on abelian varieties

Ariyan Javanpeykar, Thomas Krämer, Christian Lehn, Marco Maculan

AI总结:

本文结合几何论证与表示论,证明阿贝尔簇中高余维非平凡子簇族经一般秩一局部系统扭转后具有大单值性。

摘要:

受 Lawrence-Venkatesh 与 Lawrence-Sawin 近期工作的启发,我们证明:阿贝尔簇中的非平凡子簇族在被一般秩一局部系统扭转时具有大单值性。Lawrence-Sawin 讨论了余维数为一的子簇情形,而我们的结果适用于余维数至少为环境阿贝尔簇维数一半的子簇。在证明中,我们结合几何论证与表示论,证明此类子簇上交复形的 Tannaka 群是大的。

英文摘要:

Motivated by recent work of Lawrence-Venkatesh and Lawrence-Sawin, we show that non-isotrivial families of subvarieties in abelian varieties have big monodromy when twisted by generic rank one local systems. While Lawrence-Sawin discuss the case of subvarieties of codimension one, our results hold for subvarieties of codimension at least half the dimension of the ambient abelian variety. For the proof, we use a combination of geometric arguments and representation theory to show that the Tannaka groups of intersection complexes on such subvarieties are big.

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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