Small MAD families whose Isbell-Mrówka spaces are pseudocompact

Vinicius de Oliveira Rodrigues, Artur Hideyuki Tomita

Given a countable transitive model $M$ for ZFC+CH, we prove that one can produce a maximal almost disjoint family in $M$ whose Vietoris Hyperspace of its Isbell-Mrówka space is pse…