We consider the question of when , where is the elementary submodel topology on X ∩ M, especially in the case when is compact.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-fm176-2-2, author = {L\'ucia R. Junqueira and Franklin D. Tall}, title = {More reflections on compactness}, journal = {Fundamenta Mathematicae}, volume = {177}, year = {2003}, pages = {127-141}, zbl = {1044.54002}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-fm176-2-2} }
Lúcia R. Junqueira; Franklin D. Tall. More reflections on compactness. Fundamenta Mathematicae, Tome 177 (2003) pp. 127-141. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-fm176-2-2/