N-anti-exchange closure operators
Natural continuity space structures on dual Heyting algebras
N-compact frames
We investigate notions of -compactness for frames. We find that the analogues of equivalent conditions defining -compact spaces are no longer equivalent in the frame context. Indeed, the closed quotients of frame ‘-cubes’ are exactly 0-dimensional Lindelöf frames, whereas those frames which satisfy a property based on the ultrafilter condition for spatial -compactness form a much larger class, and better embody what ‘-compact frames’ should be. This latter property is expressible without reference...
Neighborhood spaces.
Několik příkladů topologických prostorů nesplňujících axiom
New approach for closure spaces by relations.
Normal neighborhood spaces
Notes on Kuratowski-Mrówka theorems in point-free context
Notion de compacité et quasi-topologie