Theorem that the inclusion between a projective variety and its hyperplane section induces isomorphisms of homology, cohomology or homotopy groups in low degrees
theorem that the inclusion between a projective variety and its hyperplane section induces isomorphisms of homology, cohomology or homotopy groups in low degrees (en)
la teoremo, ke la inkluzivo inter projekcia variaĵo kaj ĝia hiperebena sekcio induktas izomorfion de homologia, kohomologia aŭ homotopia grupoj je malaltaj gradoj (eo)