2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/149405We find that the overall UV divergences of a renormalizable field theory with trivalent vertices fulfil a four-term relation. They thus come close to establish a weight system. This provides a first explanation of the recent successful association of renormalization theory with knot theory.25 pages, latex, uses epsf, references updated, to appear in J.Knot Th.RamHigh Energy Physics - TheoryHigh Energy Physics - PhenomenologyQuantum Algebratext