2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/61021We prove the following result : Let $E$ be a rank 2 bundle on ${\bf P}$, the projective space of dimension 3, and $n$ a relative number such that $H^0E(n-1)=0$ and $H^0E(n)\neq 0$. Let $C$ be a curve which is the zero locus of a section of $H^0E(n)$. Then $C$ is minimal in its biliaison class.10 pages,TeXAlgebraic Geometrytext