A �-transitive graph of valency 4 with a nonsolvable group of automorphisms
Dragan Maru i, Mingyao Xu · Journal of Graph Theory · 1997
A graph X is said to be ½-transitive if its automorphism group acts transively on the sets of its vertices and edges but intransitively on the set of its arcs. A construction of a ½-transitive graph of valency 4 and girth 6 with a nonsolvable group of automorphism is given. © 1997 John Wiley & Sons, Inc. J Graph Theory 25, 1: 133–138, 1997