Same Hall-Senior genus not implies character table-equivalent

From Groupprops

This article gives the statement and possibly, proof, of a non-implication relation between two group properties. That is, it states that every group satisfying the first group property (i.e., groups having the same Hall-Senior genus) need not satisfy the second group property (i.e., character table-equivalent groups)
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Statement

It is possible to have two finite groups G1 and G2 such that:

  1. G1 and G2 are groups having the same Hall-Senior genus.
  2. G1 and G2 are not character table-equivalent groups, in fact, we can arrange our example so that the field generated by character values is different for G1 and G2.

Proof

The smallest example occurs with the three maximal class groups of order 16: dihedral group:D16, semidihedral group:SD16, and generalized quaternion group:Q16. It turns out that D16 and Q16 are character table-equivalent, but SD16 is not character table-equivalent to either. The field generated by character values for the three groups are described below:

Group Field generated by character values Information on linear representation theory
dihedral group:D16 Q(2) linear representation theory of dihedral group:D16
semidihedral group:SD16 Q(2) linear representation theory of semidihedral group:SD16
generalized quaternion group:Q16 Q(2) linear representation theory of generalized quaternion group:Q16