Título: The Alexandroff Duplicate and its subspaces
Autor: Caserta, Agata; Watson, Stephen
Resumen: [EN] We study some topological properties of the class of the Alexandroff duplicates and their subspaces. We give a characterization of metrizability and Lindel¨of properties of subspaces of the Alexandroff duplicate. This characterization clarifies the potential for finding Michael spaces among the subspaces of Alexandroff duplicates.