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arXiv 0912.4040math.AG
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全纯1-形式与向量场的导式不变性

Derived invariance of the number of holomorphic 1-forms and vector fields

Mihnea Popa, Christian Schnell

摘要:

证明了具有等价导出范畴的光滑射影簇具有同构(有时同构)的Picard簇.特别地,它们的不规则性和独立向量场的数目是相同的。这又意味着,结合霍赫希尔德同调的不变性,所有的霍奇数是相同的任意导出的等价三倍。

英文摘要:

We prove that smooth projective varieties with equivalent derived categories have isogenous (and sometimes isomorphic) Picard varieties. In particular their irregularity and number of independent vector fields are the same. This is turn implies, in combination with the invariance of Hochschild homology, that all Hodge numbers are the same for arbitrary derived equivalent threefolds.

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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