中文

关于正特征伪有效除子的数值维数

代数几何 2013-06-13 v3

摘要

XX是正特征代数闭域上的光滑射影簇。我们证明,如果DDXX上的伪有效R\mathbb{R}-除子,且数值上不等于其除子Zariski分解中的负部分,则DD的数值维数为正。在特征零时,Nakayama利用消失定理证明了这一点。

关键词

引用

@article{arxiv.1206.6521,
  title  = {On the numerical dimension of pseudo-effective divisors in positive characteristic},
  author = {Paolo Cascini and Christopher Hacon and Mircea Mustata and Karl Schwede},
  journal= {arXiv preprint arXiv:1206.6521},
  year   = {2013}
}

备注

v.3 (17 pages): typos corrected and other minor changes. Additional remarks on the singular case. To appear in the American Journal of Mathematics