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Katětov extension as a functor. (English) Zbl 0205.26603


MSC:

54C20 Extension of maps
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References:

[1] Alexandrov, P., Urysohn, P.: Mémoire sur les espaces topologiques compactes. Verh. Akad. Wetensch. Amsterdam14, 1–96 (1929).
[2] Banaschewski, B.: Extensions of topological spaces. Canad. Math. Bull.7, 1–22 (1964). · Zbl 0121.17304 · doi:10.4153/CMB-1964-001-5
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[6] Herrlich, H., Strecker, G.:H-closed spaces and reflective subcategories. Math. Ann.177, 302–309 (1968). · Zbl 0157.29104 · doi:10.1007/BF01350722
[7] Katětov, M.: ÜberH-abgeschlossene und bikompakte Räume. Časopis Pěst. Mat. Fys.69, 36–49 (1940).
[8] Liu, C. T.: Absolutely closed spaces. Trans. Amer. Math. Soc.130, 86–104 (1968). · Zbl 0153.52301 · doi:10.1090/S0002-9947-1968-0219024-9
[9] Mioduszewski, J., Rudolf, L.:H-closed and extremally disconnected Hausdorff spaces. Dissertationes Mathematicae, Warsaw, 1969. · Zbl 0204.22404
[10] Porter, J., Thomas, J.: OnH-closed and minimal Hausdorff spaces. Trans. Amer. Math. Soc.138, 159–170 (1969). · Zbl 0175.49501
[11] Strecker, G., Wattel, E.: On semi-regular and minimal Hausdorff embeddings. Indag. Math.29, 234–237 (1967). · Zbl 0148.43005
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