4 papers
Pseudocompactness, products and topological Brandt -extensions of semitopological monoids
Oleg Gutik, Oleksandr Ravsky
In the paper we study the preservation of pseudocompactness (resp., countable compactness, sequential compactness, -boundedness, totally countable compactness, countable pracomp…
On feebly compact inverse primitive (semi)topological semigroups
Oleg Gutik, Oleksandr Ravsky
We study the structure of inverse primitive feebly compact semitopological and topological semigroups. We find conditions when the maximal subgroup of an inverse primitive feebly c…
On partitions of G-spaces and G-lattices
Taras Banakh, Oleksandr Ravsky, Sergiy Slobodianiuk
Given a -space and a non-trivial -invariant ideal of subsets of , we prove that for every partition of into pieces there is a…
Compactly convex sets in linear topological spaces
T. Banakh, M. Mitrofanov, O. Ravsky
A convex subset X of a linear topological space is called compactly convex if there is a continuous compact-valued map such that for all…