The l1-homology of one-relator groups

13 June 2018
16:00
Nicolaus Heuer
Abstract

We will study the l1-homology of the 2-class in one relator groups. We will see that there are many qualitative and quantitive similarities between the l1-norm of the top dimensional class and the stable commutator length of the defining relation. As an application we construct manifolds with small simplicial volume.

This work in progress is joint with Clara Loeh.

  • Junior Topology and Group Theory Seminar