Albanese映射中的导出不变量

IF 1.2 1区 数学 Q1 MATHEMATICS
Federico Caucci, G. Pareschi
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引用次数: 4

摘要

设$a_X:X\rightarrow\mathrm{Alb}\,X$是光滑复射影变种的Albanese映射。粗略地说,在这个注中,我们证明了对于所有$i\geq0$和$\alpha\in\mathrm{Pic}^0\,X$,上同调秩$h^i(\mathrm{Alb}\,X,\,{a_X}_*\omega_X\otimes P_\alpha)$是派生不变量。在最大Albanese维数的变体的情况下,这证明了Popa和Lombardi Popa的猜想——包括Hodge数$h^{0,j}$的导出不变性——以及它们对任意变体的较弱版本。最后,我们提供了一个应用于某些不规则fibration的导出不变性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Derived invariants arising from the Albanese map
Let $a_X:X\rightarrow \mathrm{Alb}\, X$ be the Albanese map of a smooth complex projective variety. Roughly speaking in this note we prove that for all $i \geq 0$ and $\alpha\in \mathrm{Pic}^0\, X$, the cohomology ranks $h^i(\mathrm{Alb}\, X, \,{a_X}_* \omega_X\otimes P_\alpha)$ are derived invariants. In the case of varieties of maximal Albanese dimension this proves conjectures of Popa and Lombardi-Popa -including the derived invariance of the Hodge numbers $h^{0,j}$ -- and a weaker version of them for arbitrary varieties. Finally we provide an application to derived invariance of certain irregular fibrations.
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来源期刊
Algebraic Geometry
Algebraic Geometry Mathematics-Geometry and Topology
CiteScore
2.40
自引率
0.00%
发文量
25
审稿时长
52 weeks
期刊介绍: This journal is an open access journal owned by the Foundation Compositio Mathematica. The purpose of the journal is to publish first-class research papers in algebraic geometry and related fields. All contributions are required to meet high standards of quality and originality and are carefully screened by experts in the field.
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