中文

关于反典则丛的两个非零结果

代数几何 2025-08-13 v3

摘要

(X,Δ)(X, \Delta) 为具有 nef 反对数典则丛 (KX+Δ)-(K_X+\Delta) 的 klt 三维对。我们证明 κ(X,(KX+Δ))0\kappa(X, -(K_X+\Delta))\geq 0。为此,我们证明了一个更一般的关于反对数典则丛的等变非零结果,其在任意维数下成立。

关键词

引用

@article{arxiv.2305.19109,
  title  = {Two Non-Vanishing results concerning the Anti-Canonical Bundle},
  author = {Niklas Müller},
  journal= {arXiv preprint arXiv:2305.19109},
  year   = {2025}
}

备注

v3: Slight changes in accordance with suggestions made by the referee, to appear in Nagoya Math. J. Comments are very welcome!