Quantum field theory with indefinite metric, from planar models in condensed matt...
Classical Scale Invariance, Dark Matter and Neutrinos in a SU(3)_L x U(1)_N x U(1)...
Gauge extensions of the Standard Model: generating natural masses for neutrinos an...
Dynamical symmetry breaking in Standard Model extensions involving gauge group U(1)
The problem of Gauge fixation in the action and the duality in D = 2 + 1 dimensions