A few topological problems
Continuous mappings on continua [Book]
Continuous mappings on continua II [Book]
Countable-dimensional spaces: a survey [Book]
Fixed point and continuation results for contractions in metric and gauge spaces
We present an overview of generalizations of Banach's fixed point theorem and continuation results for contractions, i.e., results establishing that the existence of a fixed point is preserved by suitable homotopies. We will consider single-valued and multi-valued contractions in metric and in gauge spaces.
Local homeomorphisms [Book]
O riešení niektorých nerozhodnutelných topologických problémov
Recent research in hyperspace theory.
Set theoretic real analysis.
Some problems and lines of investigation in general topology
Some problems in set theoretical topology
Transfinite methods in metric fixed-point theory.
Wallman covers of compact spaces [Book]
When is Lindelöf?
Theorem. In ZF (i.e., Zermelo-Fraenkel set theory without the axiom of choice) the following conditions are equivalent: (1) is a Lindelöf space, (2) is a Lindelöf space, (3) is a Lindelöf space, (4) every topological space with a countable base is a Lindelöf space, (5) every subspace of is separable, (6) in , a point is in the closure of a set iff there exists a sequence in that converges to , (7) a function is continuous at a point iff is sequentially continuous at , (8)...
Неподвижные точки отображений метрических пространств
Проблематика теории битопологических пространств
Проблематика теории битопологических пространств. 3
Проблематика теории битопологических пространств. II