2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/59218We construct some natural cycles with trivial regulator in the higher Chow groups of Jacobians. For hyperelliptic curves we use a criterion due to J. Lewis to prove that the cycles we construct are indecomposable, and then use a specialization argument to prove indecomposability for more general curves. Please note that math.AG/9909062 has become an obsolete version of some of the results in the present paper.Algebraic Geometry14C30; 19E15text