中文

Voisin映射的不定轨迹

代数几何 2024-08-02 v4

摘要

Beauville与Donagi证明了光滑三次四维流形Y的线簇F(Y)F(Y)是超凯勒簇。近来,C. Lehn、M. Lehn、Sorger与van Straten证明了可自然地将一个超凯勒簇Z(Y)Z(Y)与Y上的扭曲三次曲线簇相关联。随后,Voisin定义了一个6次有理映射 ψ:F(Y)×F(Y)Z(Y)\psi:F(Y)\times F(Y)\dashrightarrow Z(Y)。我们将证明 ψ\psi 的不定轨迹为相交线轨迹。

关键词

引用

@article{arxiv.1711.06218,
  title  = {The indeterminacy locus of the Voisin map},
  author = {Giosuè Emanuele Muratore},
  journal= {arXiv preprint arXiv:1711.06218},
  year   = {2024}
}

备注

15 pages. Typo in proposition 2.2. Introduced Remark 2.3. Chages in reference LLSvS17. Insered $W_{ADE}$ and removed the explanation of $\phi$ Definition of $\psi'$ using the Rigidity Lemma. E is now the support of the exceptional divisor