2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/160747We show that the algebraic group SL(2) acts on any polarized abelian variety A through correspondences. As a consequence we recover the action of SL(2) on the Chow group CH(A) (with rational coefficients), and this gives rise to Lefschetz type properties for algebraic cycles on A .Algebraic Geometrytext