2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66076Let Z be a general surface in P^3 of degree at least 5. Using a Lefschetz pencil argument, we give an elementary new proof of the vanishing of a regulator on K_1(Z).8 pages in AMSLatexAlgebraic Geometry14C25; 14C30; 14C35Noether-Lefschetz for K_1 of a Surface, Revisitedtext