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arXiv math/0202168math.AG
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泛Picard簇的紧化几何

On the geometry of the compactification of the universal Picard variety

Claudio Fontanari

摘要:

在这里,我们集中在$\pdgbar$,由L构造的泛皮卡簇的紧化的几何。卡波拉索特别地,我们证明了M. Cornalba自然地注入到$\pdgbar$中,并给出了$\pdgbar$的有理除子类群的生成元和关系,推广了A. Kouvidakis

英文摘要:

Here we focus on the geometry of $\pdgbar$, the compactification of the universal Picard variety constructed by L. Caporaso. In particular, we show that the moduli space of spin curves constructed by M. Cornalba naturally injects into $\pdgbar$ and we give generators and relations of the rational divisor class group of $\pdgbar$, extending previous work by A. Kouvidakis.

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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