English

Normal surface singularities of small degrees

Algebraic Geometry 2024-12-17 v1

Abstract

The notion of the Yau sequence was introduced by Tomaru, as an attempt to extend Yau's elliptic sequence for (weakly) elliptic singularities to normal surface singularities of higher fundamental genera. In this paper, we obtain the canonical cycle using the Yau cycle for certain surface singularities of degree two. Furthermore, we obtain a formula of arithmetic genera and an upper bound of geometric genera for these singularities. We also give some properties about the classification of weighted dual graphs of certain surface singularities of degree two.

Keywords

Cite

@article{arxiv.2412.11406,
  title  = {Normal surface singularities of small degrees},
  author = {Stephen S. -T. Yau and Hao Zuo and Huaiqing Zuo},
  journal= {arXiv preprint arXiv:2412.11406},
  year   = {2024}
}
R2 v1 2026-06-28T20:36:12.654Z