On the mapping problem for algebraic real hypersurfaces in the complex spaces of different dimensions
type: Item
instance of: scholarly article
title: On the mapping problem for algebraic real hypersurfaces in the complex spaces of different dimensions
zbMATH Open document ID: 0803.32011
author: Xiaojun Huang
publication date: 1995-01-02T00:00:00Z
full work available at URL: http://www.numdam.org/item
full work available at URL: https://eudml.org/doc/75069
review text: We prove that if \(M_ 1\) and \(M_ 2\) are algebraic real hypersurfaces in (possibly different) complex spaces of dimension at least two and if \(f\) is a holomorphic mapping defined near a neighborhood of \(M_ 1\) so that \(f(M_ 1) \subset M_ 2\), then \(f\) is also algebraic, i.e., the field generated by adding each element of \(f\) to the rational functions field is of finite extension. Results in this direction originate in the work of Poincaré; modern results were obtained by Webster in case \(M_ 1\) and \(M_ 2\) lie in the same complex space. When \(M_ 1\) and \(M_ 2\) are spheres, then the result is due to Webster, Faran, Cima-Suffridge, and Forstneric (in this specific case, \(f\) is rational, algebraic of degree 1). The proof of our result is based on a careful analysis on the invariant varieties and reduces to the consideration of many cases. After a slight modification, the argument can also be used to prove a reflection principle, which answers a problem of Forstneric and which in turn allows our main result to be stated for mappings that are holomorphic on one side and \(C^{k+1}\) smooth up to \(M_ 1\) where \(k\) is the codimension.
reviewed by: Xiaojun Huang
Mathematics Subject Classification ID: 32H02
Mathematics Subject Classification ID: 14E05
Mathematics Subject Classification ID: 14H05
Mathematics Subject Classification ID: 32J99
zbMATH DE Number: 672148
zbMATH Keywords: algebraic real hypersurfaces
zbMATH Keywords: holomorphic mapping
zbMATH Keywords: reflection principle
MaRDI profile type: Publication
OpenAlex ID: W2020207758
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DOI: 10.5802/AIF.1405
published in: Annales de l’institut Fourier
description: scientific article; zbMATH DE number 672148