Aronszajn orderings.
Around a quotient space of Bennett-Lutzer's space.
Arrows in the “finite product theorem for certain epireflections'” of R. Frič and D. C. Kent
Atomicity of mappings.
Atoms in the family of coreflective subcategories of uniform spaces
Aull-paracompactness and strong star-normality of subspaces in topological spaces
We prove for a subspace of a -space , is (strictly) Aull-paracompact in and is Hausdorff in if and only if is strongly star-normal in . This result provides affirmative answers to questions of A.V. Arhangel’skii–I.Ju. Gordienko [3] and of A.V. Arhangel’skii [2].
AUnif: A common supercategory of pMET and Unif.
Axioms weaker then