2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/142426The standard BV complex is never acyclic provided that the equations of motion have solutions and the admissible class of functions is general enough, unless one introduces second-order antifields. This phenomenon is explicitly illustrated for the harmonic oscillator and the free electromagnetic field.8 pagesMathematical Physicstext