Delgado Pérez, Juan Ramón2023-06-212023-06-211985https://hdl.handle.net/20.500.14352/65437Actas de las X jornadas Hispano Lusas de matemáticas, Universidad de Murcia, 21 a 25 de enero de 1985Starting from the results of his thesis ["Clasificación de grupos abelianos sin torsión de rango 2 por invariantes" ("Classification of torsion-free abelian groups of rank 2 for invariants"), Dissertation, Univ. Murcia, Murcia, 1984; per bibl.], the author gives some examples which "exemplify the strong relationship that exists between the problem of isomorphism between abelian groups and certain questions from number theory"book partmetadata only access512Álgebra1201 Álgebra