2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76259In this paper we investigate the connection between relations among various invariants of number field s $L^H$ coresponding to subgroups $H$ acting on $L$ and of linear relations among norm idempotents.Number Theory14G40;11R32;11R27Actions of Galois groups on invariants of number fieldstext