Non metrizable topologies on Z with countable dual group. Daniel de la Barrera Mayoral | Show more Daniel de la Barrera Mayoral https://orcid.org/0000-0002-0024-5265 Spain IES Los Rosales (Madrid) Department of Mathematics Submitted: 2015-12-28 | Accepted: 2016-09-13 | Published: 2017-04-03 DOI: https://doi.org/10.4995/agt.2017.4469