Strong Tits alternative for Out($F_n$)

By Vincent Guirardel

Appears in collection : 2022 - T2 - WS1 - Mapping class groups and Out(Fn)

We prove that any subgroup of Out($F_N$) is either virtually abelian or has a finite index subgroup with an acylindrically hyperbolic quotient. In particular, every subgroup of Out($F_N$) is either virtually abelian or SQ-universal. This is a joint work with Camille Horbez.

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Citation data

  • DOI 10.57987/IHP.2022.T2.WS1.007
  • Cite this video Guirardel, Vincent (27/04/2022). Strong Tits alternative for Out($F_n$). IHP. Audiovisual resource. DOI: 10.57987/IHP.2022.T2.WS1.007
  • URL https://dx.doi.org/10.57987/IHP.2022.T2.WS1.007

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