Summary of Physics doctoral thesis: Some new physics effects in the 3 − 2 − 3 − 1 and 3 − 4 − 1 models

Investigate the scalar section, the gauge section, and currents in the 3 − 2 − 3 − 1 model and the minimal 3 − 4 − 1 model with right-handed neutrino. Identifying particles and interactions of SM as well as predicting new particles and interactions.