Speaker: Christoph Möller (Halle)
Title: Low Fixity Action on Sets and Groups
Abstract:
If a group \(G\) acts on a set such that every non-trivial element of \(G\) fixes at most four points, then how does this influence the structure of the group? If \(G\) is simple, can we then maybe find all possibilities for \(G\) and for the action? And what happens if we replace the set by a group on which \(G\) acts via automorphisms?