中文

Daniel Ferrand 关于 Fano 三维簇上丛的注记

代数几何 2026-05-18 v3

摘要

XX 为具有指标 iXi_X 与基本线丛 OX(h)\mathcal O_X(h) 的 Fano 三维簇。我们对 XX 上满足 c1(E)=0c_1(\mathcal E)=0h0(E)0h^0(\mathcal E) \ne 0h1(E(iX2h))=0h^1(\mathcal E(-\lceil\frac{i_X}{2}\rceil h))=0μ\mu-半稳定秩二丛 E\mathcal E 进行分类。

关键词

引用

@article{arxiv.2212.04158,
  title  = {A remark by Daniel Ferrand on bundles on Fano threefolds},
  author = {Gianfranco Casnati and Angelo Felice Lopez},
  journal= {arXiv preprint arXiv:2212.04158},
  year   = {2026}
}

备注

v.2: improved main theorem by describing the multiple structure in the case $i_X=2$, thanks to suggestion of anonymous referee. Added Remarks 3.6, 5.3 and more examples. v3: minor improvements