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arXiv 1012.3070math.CVmath.DS
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多复变数中的形式同构群与闭一形式

Groups of formal diffeomorphisms in several complex variables and closed one-forms

Mitchael Martelo, Bruno Scardua

摘要:

研究多复变数中的形式同态群。对于阿贝尔群、亚阿贝尔群或幂零群幂群,我们研究了在群作用下具有不变性的适当的形式向量场和闭微分形式的存在性。我们的结果适用于构造具有奇异性的全纯叶理的合适的积分因子。我们相信,它们是一个起点,在研究之间的联系刘维积分和横向结构的全纯叶理的情况下,任意余维的奇点。

英文摘要:

We study groups of formal diffeomorphisms in several complex variables. For abelian, metabelian or nilpotent groups we investigate the existence of suitable formal vector fields and closed differential forms which exhibit an invariance property under the group action. Our results are applicable in the construction of suitable integrating factors for holomorphic foliations with singularities. We believe they are a starting point in the study of the connection between Liouvillian integration and transverse structures of holomorphic foliations with singularities in the case of arbitrary codimension.

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