Abstract analytic and borelian sets
Abstract Characterizations of Continuous Functions.
Abstract Characterizations of Continuous Functions. (Short Communication).
Abstract distance and neighborhood spaces
AC holds iff every compact completely regular topology can be extended to a compact Tychonoff topology
We show that AC is equivalent to the assertion that every compact completely regular topology can be extended to a compact Tychonoff topology.
Accessibility spaces, -spaces and initial topologies
Accumulation points of nowhere dense sets
Acknowledgement concerning two papers on rational dimension
Acknowledgment to the paper: “Another proof that a chain of non-empty -closed subspaces has a non-empty intersection’
Action of topological semigroups, invariant means, and fixed points
Actions by a bisimple w-semigroup.
Actions, functors and the bar construction
Actions of a locally compact group with zero II.
Actions of a noncompact semigroup with zero.
Acyclic Maps and Knot Complements.
Addendum to "A survey of semigroups of continuous selfmaps" (with intro. by K. D. Magill).
Addendum to completion and closure
Addendum to the paper: “Some fixed point theorems for multivalued mappings”
Adding a random or a Cohen real: topological consequences and the effect on Martin's axiom
Adding machines, endpoints, and inverse limit spaces
Let f be a unimodal map in the logistic or symmetric tent family whose restriction to the omega limit set of the turning point is topologically conjugate to an adding machine. A combinatoric characterization is provided for endpoints of the inverse limit space (I,f), where I denotes the core of the map.