Local equivalence of symmetric hypersurfaces in $\mathbb C^2$

Details Local equivalence of symmetric hypersurfaces in $\mathbb C^2$ Local equivalence of symmetric hypersurfaces in $\mathbb C^2$

2007-09-21

arxiv.org/abs/0709.3374v1

Mathematics

Complex Variables

Scientific paper

The Chern-Moser normal form and its analog on finite type hypersurfaces in general do not respect symmetries. Extending the work of N. K. Stanton, we consider the local equivalence problem for symmetric Levi degenerate hypersurfaces of finite type in $\mathbb C^2$. The results give for all such hypersurfaces a complete normalization which respects the symmetries. In particular, they apply to tubes and rigid hypersurfaces, providing an effective classification. The main tool is a complete normal form constructed for a general hypersurface with a tube model. As an application, we describe all biholomorphic maps between tubes, answering a question posed by N. Hanges.

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