度$22$素Fano三维簇上低次有理曲线的Hilbert概型
Hilbert schemes of low-degree rational curves on a prime Fano threefold of degree $22$
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中文总结 AI 辅助
本文完整描述了度$22$素Fano三维簇上次数不超过$6$的有理曲线的Hilbert概型,利用二割线圆锥曲线几何,并导出DT型不变量。
中文摘要 AI 辅助
本文完整描述了度$22$的素Fano三维簇$X$上次数不超过$6$的有理曲线的Hilbert概型。这些Hilbert概型几何的一个关键要素是与$X$上有理曲线相关联的二割线圆锥曲线的几何。作为应用,我们描述了这些模空间的额外几何特征,并导出了Donaldson--Thomas(DT)型不变量。
英文摘要
In this paper, we give a complete description of the Hilbert schemes of rational curves up to degree $6$ on a prime Fano threefold $X$ of degree $22$. One of the key ingredients in the geometry of these Hilbert schemes is the geometry of bisecant conics associated with rational curves on $X$. As applications, we describe additional geometric features of these moduli spaces and derive Donaldson--Thomas (DT) type invariants.
发表机构
- Kyungpook National University(庆北国立大学)
- Korea Institute for Advanced Study(韩国高等科学研究院)
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