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arXiv math/0001116math.CVmath.DG
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边界上全纯映射的有限喷流判定

Finite jet determination of holomorphic mappings at the boundary

Peter Ebenfelt

摘要:

设M,M'是N维空间中的光滑实超曲面,且M在M中的点p处是k-非退化的.证明了光滑延拓到M的全纯映射,若P在M中的一个邻域在M'中同态地进入M',则全纯映射完全由它们在P处的2k-射决定.作为这个结果的应用,我们还给出了光滑实超曲面上保证无穷小CR自同构空间是有限维的充分条件.

英文摘要:

Let M,M' be smooth real hypersurfaces in N-dimensional space and assume that M is k-nondegenerate at a point p in M. We prove that holomorphic mappings that extend smoothly to M, sending a neighborhood of p in M diffeomorphically into M' are completely determined by their 2k-jet at p. As an application of this result, we also give sufficient conditions on a smooth real hypersurface which guarantee that the space of infinitesimal CR automorphisms is finite dimensional.

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