Summary of the Phd thesis Theoretical and mathematical physics: The 3-3-1 simple model and the 3-2-2-1 model for dark matter and neutrino masses

The purposes of research: Searching of dark matter in the proposed model called the simple 3-3-1 model (S331M); solving the neutrino mass problem and determine the Higgs spectrum in the G221 model with lepton-flavor non-universality.