Regularity of CR-mappings between Fuchsian type hypersurfaces in C2\mathbb C^2

preprint2020arXivOpen access

Abstract

We investigate regularity of CR-mappings between real-analytic infinite type hypersurfaces in C2\mathbb C^2. We show that, under the Fuchsian type condition, all (respectively formal or smooth) CR-diffeomorphisms between them are automatically analytic. The Fuchsian condition appears to be in a certain sense optimal for the regularity problem.

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