Application of non-Abelian finite groups to the theory of neutrino masses and mixing is
reviewed, which is strongly suggested by the agreement of the tribimaximal (TB) mixing …

Abstract The Standard Model lacks an organizing principle to describe quark and lepton
“flavours”. Neutrino oscillation experiments show that leptons mix very differently from …

A general classification of flavor symmetries is provided according to their interplay with the
proper Poincaré and gauge groups and to their linear or nonlinear action in field space. The …

We present the first example of a grand unified theory (GUT) with a modular symmetry
interpreted as a family symmetry. The theory is based on supersymmetric SU (5) in 6d …

In view of the fact that the data on neutrino mixing are still compatible with a situation where
Bimaximal mixing is valid in first approximation and it is then corrected by terms of Script O (λ …

We discuss a grand unified model based on SUSY SU (5) in extra dimensions and on the
flavour group A 4× U (1) which, besides reproducing tri-bimaximal mixing for neutrinos with …

We present a model of quark and lepton masses and mixings based on A4 family symmetry,
a discrete subgroup of an SO (3) flavour symmetry, together with Pati–Salam unification. It …

We introduce the idea of Form Dominance in the (type I) see-saw mechanism, according to
which a particular right-handed neutrino mass eigenstate is associated with a particular …

We propose a parametrization of the lepton mixing matrix in terms of an expansion in
powers of the deviations of the reactor, solar and atmospheric mixing angles from their tri …

We review the application of non‐Abelian discrete groups to Tri‐Bimaximal (TB) neutrino
mixing, which is supported by experiment as a possible good first approximation to the data …