2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147042For a curve C, viewed as a cycle in its Jacobian, we study its image n_*C under multiplication by n on JC. We prove that the subgroup generated by these cycles, in the Chow group modulo algebraic equivalence, has rank at most d-1, where d is the gonality of C. We also discuss some general facts on the action of n_* on the Chow groups.18 pages, Latex 2.09Algebraic Geometrytext