More reflections on compactness
Volume 176 / 2003
Fundamenta Mathematicae 176 (2003), 127-141
MSC: Primary 54A10, 03C62, 54D30; Secondary 54A25, 54B99, 54D65, 54G12.
DOI: 10.4064/fm176-2-2
Abstract
We consider the question of when $X_M = X$, where $X_M$ is the elementary submodel topology on $X \cap M$, especially in the case when $X_M$ is compact.