2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/78669The co-Lie structures compatible with the osp(2|2) Lie super algebra structure are investigated and found to be all of coboundary type. The corresponding classical r-matrices are classified into several disjoint families. The osp(1|2)+u(1) Lie super-bialgebras are also classified.30 pages, LaTeXQuantum Algebratext