Abstract
We have as aim in this project study, in a systematic way, the Generalized Scalar Electrodynamics (GSQED4) from three distinguished outlooks: functional methods, Duffin-Kemmer-Petiau theory (DKP) and Causal Perturbation Theory (CPT). First, we will analyze the effect of the Podolsky term: into the Hamiltonian structure and, by functional methods, at T = 0 and T /= 0, into the Green s func…