The category of Urysohn spaces is not cowellpowered

DOI10.1016/0166-8641(83)90020-2zbMath0534.54004OpenAlexW2095462290MaRDI QIDQ790471

Joachim Schröder

Publication date: 1983

Published in: Topology and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0166-8641(83)90020-2

zbMATH Keywords

rationalsepimorphismordinal numbercategory of Urysohn spacesextremal monomorphismnot cowellpowered category

Mathematics Subject Classification ID

Related Items (11)

Cowellpoweredness of some categories of quasi-uniform spaces ⋮ The category of \(S(\alpha)\)-spaces is not cowellpowered ⋮ Closure operators. I ⋮ On spaces in which every bounded subset is Hausdorff ⋮ S(n)-\(\theta\)-closed spaces ⋮ Epimorphisms and closure operators of categories of semilattices ⋮ Unnamed Item ⋮ A diagonal theorem for epireflective subcategories of Top and cowellpoweredness ⋮ Cowellpoweredness and closure operators in categories of coarse spaces ⋮ Large sources and closure operators in topological constructs ⋮ Epis in categories of convergence spaces

Cites Work

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• Epi und extremer Mono in \(T_{2a}\)
• Constructions and applications of rigid spaces. I
• Constructions and Applications of Rigid Spaces-II
• A connected countable Hausdorff space

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