On the arithmetical rank of a special class of minimal varieties

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/154126We study the arithmetical ranks and the cohomological dimensions of an infinite class of Cohen-Macaulay varieties of minimal degree. Among these we find, on the one hand, infinitely many set-theoretic complete intersections, on the other hand examples where the arithmetical rank is arbitrarily greater than the codimension.The first part of Section 4 was rewrittenCommutative AlgebraAlgebraic Geometry14M10 (Primary); 13C40, 13D45, 14M05, 14M20 (Secondary)On the arithmetical rank of a special class of minimal varietiestext