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arXiv 1801.02709math.AG
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空间曲线的导出范畴与亏格

Derived categories and the genus of space curves

Emanuele Macrì, Benjamin Schmidt

摘要:

本文将Gruson和Peskine关于射影空间中曲线亏格的一个经典结果推广到Picard秩为1的主极化交换三重曲线上.证明是基于跨壁技术的理想层曲线的导出范畴。在这个过程中,我们得到了其他稳定对象,如秩二层的陈特征标的界。这个论证也给出了射影空间的一个证明。在这种情况下,这些技术也表明了一种方法的猜想由Hartshorne和Hirschowitz,我们证明了第一步。

英文摘要:

We generalize a classical result about the genus of curves in projective space by Gruson and Peskine to principally polarized abelian threefolds of Picard rank one. The proof is based on wall-crossing techniques for ideal sheaves of curves in the derived category. In the process, we obtain bounds for Chern characters of other stable objects such as rank two sheaves. The argument gives a proof for projective space as well. In this case these techniques also indicate an approach for a conjecture by Hartshorne and Hirschowitz and we prove first steps towards it.

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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