On nearly strongly paracompact spaces.
On negative escape time in semidynamical systems.
On neighborhoods of the Kuratowski imbedding beyond the first extremum of the diameter functional
On Nets and Filters.
On non compact FANR's and MANR's
On non-normality points and metrizable crowded spaces
is non-normal for any metrizable crowded space and an arbitrary point .
On non-normality points, Tychonoff products and Suslin number
Let a space be Tychonoff product of -many Tychonoff nonsingle point spaces . Let Suslin number of be strictly less than the cofinality of . Then we show that every point of remainder is a non-normality point of its Čech–Stone compactification . In particular, this is true if is either or and a cardinal is infinite and not countably cofinal.
On nonregular ideals and -ideals in
The spaces in which every prime -ideal of is either minimal or maximal are characterized. By this characterization, it turns out that for a large class of topological spaces , such as metric spaces, basically disconnected spaces and one-point compactifications of discrete spaces, every prime -ideal in is either minimal or maximal. We will also answer the following questions: When is every nonregular prime ideal in a -ideal? When is every nonregular (prime) -ideal in a -ideal? For...
On non-separable 0-dimensional metrizable spaces
On nonunique fixed point theorems.
On non-zero dimensional atoms
On normal lattices and separation and semi-separation of lattices.
On normal lattices and Wallman spaces.
On normality and countable paracompactness
On normality of the product of two spaces
On norms and subsets of linear spaces
On nowhere density of the class of somewhat continuous functions in
On nowhere first-countable compact spaces with countable -weight
The minimum weight of a nowhere first-countable compact space of countable -weight is shown to be , the least cardinal for which the real line can be covered by many nowhere dense sets.
On numerical and non-numerical ecart
On one generalization of the weakly compactly generated B-spaces