English

Lipschitz geometry of the image of finite mappings

Algebraic Geometry 2025-07-31 v2 Complex Variables

Abstract

This paper is devoted to the study of the LNE property in complex analytic hypersurface parametrized germs, that is, the sets that are images of finite analytic map germs from (Cn,0)(\mathbb{C}^n,0) to (Cn+1,0)(\mathbb{C}^{n+1},0). We prove that if the multiplicity of ff is equal to his generic degree, then the image of ff is LNE at 0 if and only if it is a smooth germ. We also show that every finite corank 1 map is sattisfies the previous hypothesis. Moreover, we show that for an injective map germ ff from (Cn,0)(\mathbb{C}^n,0) to (Cn+1,0)(\mathbb{C}^{n+1},0), the image of ff is LNE at 0 if and only if ff is an embedding.

Keywords

Cite

@article{arxiv.2507.21405,
  title  = {Lipschitz geometry of the image of finite mappings},
  author = {Juan José Nuño Ballesteros and Vinícius de Oliveira Prado and Guillermo Peñafort Sanchis and José Edson Sampaio},
  journal= {arXiv preprint arXiv:2507.21405},
  year   = {2025}
}

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12 pages