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arXiv 0709.0546math.CVmath.DS
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与射影自同构群有关的向量场和叶理

Vector fields and foliations associated to groups of projective automorphisms

Fabio H. Santos, Bruno Scardua

摘要:

本文引入并给出了$\ov \bc \times \bc P(2)$和$\ov \bc \times \ov \bc^n$上(一维)Riccati叶理(向量场)的规范形.这些是叶理的特点是横向与通用纤维的第一个投影,我们证明他们是共轭{ \em在一些不变的Zagliki开子集}的悬浮一自同构群的纤维,$\bc P(2)$或$\ov \bc^n$,这组被称为{ \it全球holonomy}。我们的主要结果表明,给定$\Aut(\bc P (2))$的一个生成子群$G$,在$\ov \bc \times \bc P(2)$上存在一个Riccati叶理,使得它的整体完整性与$G$共轭.

英文摘要:

We introduce and give normal forms for (one-dimensional) Riccati foliations (vector fields) on $\ov \bc \times \bc P(2)$ and $\ov \bc \times \ov \bc^n$. These are foliations are characterized by transversality with the generic fiber of the first projection and we prove they are conjugate {\em in some invariant Zariski open subset} to the suspension of a group of automorphisms of the fiber, $\bc P(2)$ or $\ov \bc^n$, this group called {\it global holonomy}. Our main result states that given a finitely generated subgroup $G$ of $\Aut(\bc P (2))$, there is a Riccati foliation on $\ov \bc \times \bc P(2)$ for which the global holonomy is conjugate to $G$.

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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