What reason did ABC give for the change in actor?q
The outer automorphism group of 2E6 ( " q " ) is the product of the diagonal automorphism group Z / gcd ( 3 , " q " +1 ) Z ( given by the action of 2E6 , ad ( " q " )) and the group of field automorphisms ( i.e. , cyclic of order " f " if " q " = " p "" f " where " p " is prime ) .