2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/68619For a polynomial $f$ in two complex variables, we prove that the multi-link at infinity of the 0-fiber $f^{-1}(0)$ is a fibred multi-link if and only if all the values different from 0 are regular at infinity.6 pages. Old work, originally published 1999. Put it there for completenessAlgebraic GeometryGeometric Topologytext