activity
20102025
most citedPrecompact noncompact reflexive abelian groups

16 citations · 31 across the 13 of their papers we have counts for

collaborators

16 papers

math.GN2025

The completeness of free Boolean topological groups

Ol'ga V. Sipacheva, Mikhail G. Tkachenko

It is proved that the free Boolean topological group on a Tychonoff space is Weil complete if and only if the space is Dieudonné complete. This result provides a pos…

math.GN2023

All countable subsets of pseudocompact quasitopological Korovin groups are closed, discrete and -embedded

Evgenii Reznichenko, Mikhail Tkachenko

We show that all countable subsets of any pseudocompact quasitopological group in the form of a Korovin orbit are closed, discrete, and -embedded. Consequently, any infinit…

math.GR2020★ 1 cited

Weak completions of paratopological groups

Taras Banakh, Mikhail Tkachenko

Given a paratopological group and a class of continuous homomorphisms of paratopological groups, we define the - …

math.GN2019

Simply -factorizable (para)topological groups and their completions

Li-Hong Xie, Mikhail Tkachenko

Let us call a (para)topological group \emph{strongly submetrizable} if it admits a coarser separable metrizable (para)topological group topology. We present a characterization of s…

math.GN2019

On convergent sequences in dual groups

M. V. Ferrer, S. Hernández, M. Tkachenko

We provide some characterizations of precompact abelian groups whose dual group endowed with the pointwise convergence topology on elements of contains a nontr…

math.GN2017

The Separable Quotient Problem for Topological Groups

Arkady G. Leiderman, Sidney A. Morris, Mikhail G. Tkachenko

The famous Banach-Mazur problem, which asks if every infinite-dimensional Banach space has an infinite-dimensional separable quotient Banach space, has remained unsolved for 85 yea…