Exposés de recherche

Collection Exposés de recherche

00:00:00 / 00:00:00
318 380

Groups with Bowditch boundary a 2-sphere

By Bena Tshishiku

Also appears in collection : Jean-Morlet chair: Structure of 3-manifold groups / Chaire Jean-Morlet : Structures des groupes de 3-variétés

Bestvina-Mess showed that the duality properties of a group $G$ are encoded in any boundary that gives a Z-compactification of $G$. For example, a hyperbolic group with Gromov boundary an $n$-sphere is a PD$(n+1)$ group. For relatively hyperbolic pairs $(G,P)$, the natural boundary - the Bowditch boundary - does not give a Z-compactification of G. Nevertheless we show that if the Bowditch boundary of $(G,P)$ is a 2-sphere, then $(G,P)$ is a PD(3) pair. This is joint work with Genevieve Walsh.

Information about the video

Citation data

  • DOI 10.24350/CIRM.V.19368003
  • Cite this video Tshishiku, Bena (27/02/2018). Groups with Bowditch boundary a 2-sphere. CIRM. Audiovisual resource. DOI: 10.24350/CIRM.V.19368003
  • URL https://dx.doi.org/10.24350/CIRM.V.19368003

Domain(s)

Bibliography

Last related questions on MathOverflow

You have to connect your Carmin.tv account with mathoverflow to add question

Ask a question on MathOverflow




Register

  • Bookmark videos
  • Add videos to see later &
    keep your browsing history
  • Comment with the scientific
    community
  • Get notification updates
    for your favorite subjects
Give feedback