C^0 local non-rigidity of boundary actions of nonpositively curved lattices

  • Tagungsort:

    SR 2.058

  • Datum:


  • Referent:

    Chris Connell

  • Zeit:


  • We will start with a brief and partial survey of (local) rigidity of group actions, and elucidate some examples of boundary actions by CAT(0) groups where there is no local rigidity (or in some cases none expected). Most of the talk will cover the most intricate and interesting of these examples arising from Graph manifold groups and based on the work of Buyalo and Kleiner-Leeb.