In this paper we let G be a simple algebraic group and r be a natural number, and consider the codimension in G of the variety of elements g âˆˆ G satisfying gr = 1. We shall obtain a lower bound forâ€¦ (More)

Let G be a finite simple group, and let C be a non-identity conjugacy class of G. Write X(G, C ) for the undirected Cayley graph of G based on the generating set C _ C; thus the vertices of X(G, C )â€¦ (More)

The workshop Groups and Geometries was one of a series of Oberwolfach workshops which takes place every 3 years. It focused on finite simple groups, Lie-type groups and their interactions withâ€¦ (More)