2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/28109The Hubbard Hamiltonian and its variants/generalizations continue to dominate the theoretical modelling of important problems such as high temperature superconductivity. In this note we identify the set of relevant operators for the Hubbard Hamiltonian with a magnetic field term.19 pages, RevTexCondensed MatterQuantum Physicstext