中文

环面曲面奇点一阶形变上的对偶化层

代数几何 2016-10-10 v2

摘要

我们明确描述了满足Wahl、Koll\'ar-Shepherd-Barron和Viehweg引入的形变条件之一的循环商奇点的无穷小形变。结论是,在许多情况下这三种概念彼此不同。特别地,我们看到尽管一般类型曲面的模空间的KSB和Viehweg版本具有相同的底层约化子概型,但它们的无穷小结构是不同的。

关键词

引用

@article{arxiv.1601.07805,
  title  = {The dualizing sheaf on first-order deformations of toric surface singularities},
  author = {Klaus Altmann and János Kollár},
  journal= {arXiv preprint arXiv:1601.07805},
  year   = {2016}
}

备注

The introduction has been expanded. Moreover, we have corrected a couple of misprints and a mistake in the quotation of the T1 formula