2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/100750Using spectral function of photon we find the reliable results for the effects of vacuum polarization for the dressed fermion propagator in three-dimensional QED.19pages,Revtex4.abstract,introduction,section III,IV,V and summary are modified.Using sectral function of photon unquenched case becomes simpleHigh Energy Physics - Theorytext