On the Automorphism Group of a Binary Self-dual [120, 60, 24] Code

Stefka Bouyuklieva, Javier de la Cruz, Wolfgang Willems

We prove that an automorphism of order 3 of a putative binary self-dual [120, 60, 24] code C has no fixed points. Moreover, the order of the automorphism group of C divides 2^a.3.5…