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Reflection ideals and mappings between generic submanifolds in complex space. (English) Zbl 1039.32021
Authors’ abstract: Results on finite determination and convergence of formal mappings between smooth generic submanifolds in $$\mathbb{C}^N$$ are established in this article. The finite determination result gives sufficient conditions to guarantee that a formal map is uniquely determined by its jet, of a preassigned order, at a point. Convergence of formal mappings for real-analytic generic submanifolds under appropriate assumptions is proved, and natural geometric conditions are given to assure that if two germs of such submanifolds are formally equivalent, then they are necessarily biholomorphically equivalent. It is also shown that if two real-algebraic hypersurfaces in $$\mathbb{C}^N$$ are biholomorphically equivalent, then they are algebraically equivalent. All the results are first proved in the more general context of “reflection ideals” associated to formal mappings between formal as well as real-analytic and real-algebraic manifolds.

##### MSC:
 32H02 Holomorphic mappings, (holomorphic) embeddings and related questions in several complex variables 32V40 Real submanifolds in complex manifolds
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