Abstract by Rebeca Paulsen
Weak Cayley Table Groups of Crystallographic Groups
Let G be a group. A Weak Cayley Table mapping f : G ---> G is a bijection such that f(g1g2 ) is conjugate to f(g1) f(g2) for all g1, g2 in G. The set of all such mappings forms a group W(G) under composition. We study W(G) for several of the three dimensional crystallographic groups G.