Good real pictures of corank one map germs from the $n$-space to the $(n+1)$-space

Fuente: arXiv
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Main Authors: Conejero, R. Giménez, Ribes, Ignacio Breva
Format: Preprint
Published: 2025
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author Conejero, R. Giménez
Ribes, Ignacio Breva
author_facet Conejero, R. Giménez
Ribes, Ignacio Breva
contents We study corank one $A$-finite germs $f:(\mathbb{R}^n,0)\rightarrow (\mathbb{R}^{n+1},0)$ and their complexifications. More precisely, we study when these germs provide good real pictures of the complex germs, i.e., when there is a real deformation that has the same homology in the image (hence, homotopy) than the generic complex deformation. We give a new sufficient condition that can be computed in practice, as well as examples.
format Preprint
id arxiv_https___arxiv_org_abs_2507_13467
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Good real pictures of corank one map germs from the $n$-space to the $(n+1)$-space
Conejero, R. Giménez
Ribes, Ignacio Breva
Algebraic Geometry
Primary 58K60, Secondary 14P25, 32S30
We study corank one $A$-finite germs $f:(\mathbb{R}^n,0)\rightarrow (\mathbb{R}^{n+1},0)$ and their complexifications. More precisely, we study when these germs provide good real pictures of the complex germs, i.e., when there is a real deformation that has the same homology in the image (hence, homotopy) than the generic complex deformation. We give a new sufficient condition that can be computed in practice, as well as examples.
title Good real pictures of corank one map germs from the $n$-space to the $(n+1)$-space
topic Algebraic Geometry
Primary 58K60, Secondary 14P25, 32S30
url https://arxiv.org/abs/2507.13467