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| Główni autorzy: | , |
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| Format: | Preprint |
| Wydane: |
2017
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| Hasła przedmiotowe: | |
| Dostęp online: | https://arxiv.org/abs/1702.08050 |
| Etykiety: |
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Spis treści:
- This is the second part of a two part work in which we prove that for every finitely generated subgroup $Γ< \mathsf{Out}(F_n)$, either $Γ$ is virtually abelian or its second bounded cohomology $H^2_b(Γ;\mathbb{R})$ contains an embedding of $\ell^1$. Here in Part II we focus on finite lamination subgroups $Γ$ --- meaning that the set of all attracting laminations of elements of $Γ$ is finite --- and on the construction of hyperbolic actions of those subgroups to which the general theory of Part I is applicable.