2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/210661For an abelian extension of number fields we show that the Stark conjecture for all Artin L-functions with zero of order r is equivalent to existence of a special element in the rational span of the r-th exterior power of the Galois module of units of the bigger field.Number Theory11G40Generalization of the "Stark unit" for abelian L-functions with multiple zerostext