English

Explicit Computation of The Generic Component of the Analytic Moduli of a Plane Branch

Algebraic Geometry 2025-11-24 v3 Complex Variables Dynamical Systems

Abstract

Let C{\mathcal C} be a fixed equisingularity class of irreducible germs of complex analytic plane curves. We compute a basis of the C[[x]]{\mathbb C}[[x]]-module of K\"ahler differentials for generic ΓC\Gamma \in {\mathcal C}, algorithmically, and study its behaviour under blow-up. As a first application, we give an algorithm providing the generic semimodule in an equisingularity class in terms of its multiplicity and its Puiseux characteristic exponents. As another application, we give an alternative proof for a formula of Genzmer, that provides the dimension of the moduli of analytic classes in the equisingularity class of Γ\Gamma.

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Cite

@article{arxiv.2405.09684,
  title  = {Explicit Computation of The Generic Component of the Analytic Moduli of a Plane Branch},
  author = {Pedro Fortuny Ayuso and Javier Ribón},
  journal= {arXiv preprint arXiv:2405.09684},
  year   = {2025}
}

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53 pages