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arXiv 2312.00539math.AG
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关于射影曲面本原上同调格的一个注记

A note on the primitive cohomology lattice of a projective surface

Chris Peters

AI总结:

本文研究射影曲面的本原上同调格,证明在不定情形下它可由相交格和本原丰沛类的自交数确定,并给出 Godeaux 曲面、Kunev 曲面及 Horikawa 曲面等例子,同时讨论了一般型典范极化曲面的负定本原格结果。

摘要:

紧复曲面的相交形式的等距类可以容易地由复解析不变量确定。对于射影曲面,本原格是另一种自然出现的格。本注记的目标是证明:至少当本原格为不定格时,它可以由相交格和一个本原丰沛类的自交数确定。例子包括 Godeaux 曲面、Kunev 曲面和一个特定的 Horikawa 曲面。此外,还有一些关于(负)定本原格的结果,特别是对于一般型的典范极化曲面。

英文摘要:

The isometry class of the intersection form of a compact complex surface can be easily determined from complex-analytic invariants. For projective surfaces the primitive lattice is another naturally occurring lattice. The goal of this note is to show that it can be determined from the intersection lattice and the self-intersection of a primitive ample class, at least when the primitive lattice is indefinite. Examples include the Godeaux surfaces, the Kunev surface and a specific Horikawa surface. There are also some results concerning (negative) definite primitive lattices, especially for canonically polarized surfaces of general type.

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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