(1) Fachbereich Mathematik der TH, Schlogartenstr. 7, D-64289 Darmstadt, Germany;(2) Mathematisches Institut B/1, Universität Stuttgart, Germany, D-70550 Stuttgart, Germany
Abstract:
We classify those groups whose automorphism group has at most three orbits. In other words, we classify those groups whose holomorph is a rank 3 permutation group.