中文

具有整同调球面链环且与具平面半群的时空单项式曲线相关的正规曲面奇点

代数几何 2020-10-29 v2

摘要

在本文中,我们考虑一类具有整同调球面链环的正规曲面奇点的无限族,该族与具平面半群的时空单项式曲线族相关。这些单项式曲线作为曲线等奇异性族的特化纤维出现,其一般纤维为复平面分支,而相关的曲面奇点出现在这些曲线的单值猜想证明中。为考察正规曲面奇点的链环是否为整同调球面,可使用一种依赖于(部分)分解的交叉矩阵行列式的刻画。为研究我们的族,我们将此刻画应用于通过作为加权爆破序列构造的奇点的部分环面分解。

关键词

引用

@article{arxiv.2008.10918,
  title  = {Normal surface singularities with an integral homology sphere link related to space monomial curves with a plane semigroup},
  author = {Jorge Martín-Morales and Lena Vos},
  journal= {arXiv preprint arXiv:2008.10918},
  year   = {2020}
}

备注

v2: 31 pages; Section 3.3 was added to answer Jonathan Wahl's question on the possible connection with the singularities of splice type, introduction and preliminary section were changed accordingly, minor typos and aesthetic changes