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arXiv 0903.5318math.CVmath.DG
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弱伪凹CR流形的全纯延拓

Holomorphic Extension from Weakly Pseudoconcave CR Manifolds

A. Altomani, C. D. Hill, M. Nacinovich, E. Porten

摘要:

设M是局部可嵌入的光滑CR流形,具有一定的CR维数m和CR余维数d.我们发现了一个改进的局部几何条件,保证在M上的一个点p,CR分布的芽是光滑函数,并有扩展到全纯函数芽的全周围邻域的p。我们的条件是一种形式的弱伪随机,密切相关的本质伪随机[HN 1]。应用CR亚纯函数和映射。给出了满足我们新条件的显式例子,但它们不是强意义上的伪凹。这些结果表明,对于余维d > 1,存在当d = 1时不可见的额外现象。

英文摘要:

Let M be a smooth locally embeddable CR manifold, having some CR dimension m and some CR codimension d. We find an improved local geometric condition on M which guarantees, at a point p on M, that germs of CR distributions are smooth functions, and have extensions to germs of holomorphic functions on a full ambient neighborhood of p. Our condition is a form of weak pseudoconcavity, closely related to essential pseudoconcavity as introduced in [HN1]. Applications are made to CR meromorphic functions and mappings. Explicit examples are given which satisfy our new condition,but which are not pseudoconcave in the strong sense. These results demonstrate that for codimension d > 1, there are additional phenomena which are invisible when d = 1.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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