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arXiv 1602.04355math.DS
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环面 $\T^2$ 上的横截叶状结构与 3-流形上的部分双曲微分同胚

Transverse foliations on the torus $\T^2$ and partially hyperbolic diffeomorphisms on 3-manifolds

Christian Bonatti, Jinhua Zhang

AI总结:

本文证明环面上任意两个横截 $C^1$ 叶状结构可由非零伦微分同胚环路保持横截,并据此将 Dehn 扭转构造部分双曲微分同胚的方法推广到任意非传递 Anosov 流。

摘要:

本文证明,给定 $\mathbb{T}^2$ 上两个横截的 $C^1$ 叶状结构 $\mathcal{F}$ 和 $\mathcal{G}$,在 $\diff^{1}(\T^2)$ 中存在一个非零伦的环路 $\{Φ_t\}_{t\in[0,1]}$,使得对每个 $t\in[0,1]$ 都有 $Φ_t(\calF)\pitchfork \calG$,并且 $Φ_0=Φ_1=Id$。作为直接推论,我们得到了在闭 3-流形上构造新的部分双曲微分同胚的一般过程。文献 \cite{BPP} 在闭 3-流形上构造了一个新的动力连贯、非传递的部分双曲微分同胚实例;\cite{BPP} 中的实例是通过将一个非常特定的非传递 Anosov 流的时间 $t$ 映射(其中 $t>0$ 足够大)与沿横截环面的 Dehn 扭转复合而得到的。我们的结果表明,从有向 3-流形上的任意非传递 Anosov 流出发,同样的构造都成立。此外,对于给定的横截环面,我们的结果解释了哪种类型的 Dehn 扭转会产生部分双曲微分同胚。

英文摘要:

In this paper, we prove that given two $C^1$ foliations $\mathcal{F}$ and $\mathcal{G}$ on $\mathbb{T}^2$ which are transverse, there exists a non-null homotopic loop $\{Φ_t\}_{t\in[0,1]}$ in $\diff^{1}(\T^2)$ such that $Φ_t(\calF)\pitchfork \calG$ for every $t\in[0,1]$, and $Φ_0=Φ_1= Id$. As a direct consequence, we get a general process for building new partially hyperbolic diffeomorphisms on closed $3$-manifolds. \cite{BPP} built a new example of dynamically coherent non-transitive partially hyperbolic diffeomorphism on a closed $3$-manifold, the example in \cite{BPP} is obtained by composing the time $t$ map, $t>0$ large enough, of a very specific non-transitive Anosov flow by a Dehn twist along a transverse torus. Our result shows that the same construction holds starting with any non-transitive Anosov flow on an oriented $3$-manifold. Moreover, for a given transverse torus, our result explains which type of Dehn twists lead to partially hyperbolic diffeomorphisms.

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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