2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/65983Novikov initiated the study of the algebraic properties of quadratic forms over polynomial extensions by a far-reaching analogue of the Pontrjagin-Thom transversality construction of a Seifert surface of a knot and the infinite cyclic cover of the knot exterior. In this paper the analogy is applied to explain the relationship between the Seifert forms over a ring with involution and Blanchfield forms over the Laurent polynomial extension.30 pages, LATEX. v3: minor revision of v2 (which was itself a minor revision of v1)Geometric TopologyAlgebraic Topology57R67text