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arXiv 2301.06367math.AG
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凸Fujita数不由基本群决定

Convex Fujita numbers are not determined by the fundamental group

Jiaming Chen, Alex Küronya, Yusuf Mustopa, Jakob Stix

AI总结:

本文引入凸Fujita数来度量光滑射影簇上伴随线丛的有效整体生成性,并计算了一类维数 $d \geq 2$、基本群为任意射影群的簇的凸Fujita数,表明其不由基本群决定。

摘要:

我们研究光滑射影簇上伴随线丛的有效整体生成性。为了度量其有效性,我们引入光滑射影簇的凸Fujita数概念,并针对一类具有指定维数 $d \geq 2$ 且以任意射影群为基本群的簇,计算其凸Fujita数的值。

英文摘要:

We study effective global generation of adjoint line bundles on smooth projective varieties. To measure the effectivity we introduce the concept of the convex Fujita number of a smooth projective variety and compute its value for a class of varieties with prescribed dimension $d \geq 2$ and an arbitrary projective group as fundamental group.

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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