-cubes
Scattered compactification for the Arens’ space
Semi-uniformities in quotient spaces
Sequential compactness vs. countable compactness
The general question of when a countably compact topological space is sequentially compact, or has a nontrivial convergent sequence, is studied from the viewpoint of basic cardinal invariants and small uncountable cardinals. It is shown that the small uncountable cardinal 𝔥 is both the least cardinality and the least net weight of a countably compact space that is not sequentially compact, and that it is also the least hereditary Lindelöf degree in most published models. Similar results, some definitive,...
Some factorization theorems for closed subspaces
Some questions on the composition factor property for atomic mappings.
Some Remarks On Choice Topology
Some remarks on choice topology.
Some set-theoretic constructions in topology
Some theorems about the embeddability of ANR-sets into decomposition spaces of
Sur les espaces riemanniens avec bords singuliers