Group-theoretical search for rows or columns of the lepton mixing matrix
Group-theoretical search for rows or columns of the lepton mixing matrix
We have used the SmallGroups library of groups, together with the computer algebra systems GAP and Mathematica, to search for groups with a three-dimensional irreducible representation in which one of the group generators has a twice-degenerate eigenvalue while another generator has non-degenerate eigenvalues. By assuming one of these group generators …