pub fn conjugacy_classes(
degree: usize,
gens: &[Perm],
cap: usize,
) -> Option<Vec<Vec<Perm>>>Expand description
The conjugacy classes of the group — the partition of its elements by g ~ x⁻¹gx. The number of
classes equals the number of irreducible representations (the bridge to character theory); the
singleton classes are exactly the centre Z(G). Requires enumerating the group, so it returns None
when |G| > cap.