中文

具有一个 Puiseux 对的曲线奇点及其局部环上模的值集

交换代数 2022-12-21 v3 代数几何

摘要

本文刻画了与具有一个 Puiseux 对的不可约平面曲线奇点芽 ξ\xi 相关联的局部环 RR 上形如 R+zRR+zRRR-模的值集 Δ\Delta。在附着于 ξ\xi 的 K\"ahler 微分模这一特殊情形中,我们恢复了 Delorme 的某些结果。由我们对 Δ\Delta 的刻画,引入了环 RR 的值半群上半模的一个适当子集。此外,我们给出了一个几何算法,对给定值半群构造该子集中的所有可能半模。

关键词

引用

@article{arxiv.2105.07943,
  title  = {Curve singularities with one Puiseux pair and value sets of modules over their local rings},
  author = {Maria Alberich-Carramiñana and Patricio Almirón and Julio José Moyano-Fernández},
  journal= {arXiv preprint arXiv:2105.07943},
  year   = {2022}
}

备注

v3: Theorem 3.4 in v2 has been eliminated as a result of a gap in the proof. Section 3.2 in v2 has been eliminated. The rest of main results remain unchanged. General redaction has been improved. v1: Comments are very welcome! 19 pages. 5 Figures