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Essential Completions of Topological Spaces Full article

Journal Algebra and Logic
ISSN: 0002-5232 , E-ISSN: 1573-8302
Output data Year: 2025, Volume: 64, Number: 3, Pages: 144–159 Pages count : 16 DOI: 10.1007/s10469-026-09821-9
Tags essential completion, essential extension, ideal space, injective space, T0-space, topological semilattice.
Authors Ershov Yu.L. 1 , Schwidefsky M.V. 1,2
Affiliations
1 Sobolev Institute of Mathematics of the Siberian Branch of the Russian Academy of Scinences, Novosibirsk, Russia
2 Kazan (Volga Region) Federal University, Kazan, Russia

Funding (1)

1 Russian Science Foundation 24-11-00227

Abstract: We obtain essential completions of topological T0-spaces with the help of ideal spaces. We also establish a connection between the essential completeness of function spaces and the essential completeness, as well as with the existence of approximation in the semilattice of open sets.
Cite: Ershov Y.L. , Schwidefsky M.V.
Essential Completions of Topological Spaces
Algebra and Logic. 2025. V.64. N3. P.144–159. DOI: 10.1007/s10469-026-09821-9 WOS Scopus OpenAlex
Dates:
Submitted: Jun 15, 2025
Accepted: Oct 8, 2025
Published print: Apr 1, 2026
Published online: Apr 1, 2026
Identifiers:
≡ Web of science: WOS:001731141500001
≡ Scopus: 2-s2.0-105034815574
≡ OpenAlex: W7147244081
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