English

Constructive solution of Zariski's Moduli Problem for Plane Branches

Algebraic Geometry 2024-12-11 v3 Complex Variables Dynamical Systems

Abstract

In this paper we give an explicit solution to Zariski's moduli problem for plane branches. We compute (in an algorithmic way) the set of K\"{a}hler differentials of an irreducible germ of holomorphic plane curve. We show that there is a basis of this set whose main elements correspond to dicritical foliations. Indeed, we discuss several concepts of generation for the semimodule of values of K\"{a}hler differentials of the curve and provide basis of K\"{a}hler differentials, for every of these concepts, whose geometric properties are described. Moreover, we give an algorithmic construction of the bases.

Keywords

Cite

@article{arxiv.2405.13958,
  title  = {Constructive solution of Zariski's Moduli Problem for Plane Branches},
  author = {Pedro Fortuny Ayuso and Javier Ribón},
  journal= {arXiv preprint arXiv:2405.13958},
  year   = {2024}
}

Comments

62 pages. Added Subsection 5.4 on "Hidden Coefficients", which covers in a straightforward way, Zariski's study of the noncompactness for genus greater than 2

R2 v1 2026-06-28T16:36:15.776Z