Transverse foliations on the torus $\T^2$ and partially hyperbolic diffeomorphisms on 3-manifolds
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| Format: | Preprint |
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2016
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| _version_ | 1866909207312203776 |
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| author | Bonatti, Christian Zhang, Jinhua |
| author_facet | Bonatti, Christian Zhang, Jinhua |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_1602_04355 |
| institution | arXiv |
| publishDate | 2016 |
| record_format | arxiv |
| spellingShingle | Transverse foliations on the torus $\T^2$ and partially hyperbolic diffeomorphisms on 3-manifolds Bonatti, Christian Zhang, Jinhua Dynamical Systems 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. |
| title | Transverse foliations on the torus $\T^2$ and partially hyperbolic diffeomorphisms on 3-manifolds |
| topic | Dynamical Systems |
| url | https://arxiv.org/abs/1602.04355 |