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Scientific Seminar:
Topology & Applications

(founded by I.Guran in 1981)
(continued by M.Zarichnyi 1983–)
(currently supervised by T.Banakh)



Speaker: Serhii Bardyla
Talk: Detecting H-closed semigroups
When & where: Monday, May 29, 2017 at 16 40 in Lecture Room 377
Abstract: A semigroup S is defined to be H-closed if it is closed in each Hausdorff topological semigroup containing S as a discrete subsemigroup. We shall try to characterize H-closed semigroups in some classes of semigroups (completely simple, completely 0-simple, completely regular, etc).