Geodesic
A basic approach to the perfect extensions of spaces
Commentationes Mathematicae Universitatis Carolinae, Tome 38 (1997) no. 3, pp. 571-580.

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In this paper we generalize the notion of {\it perfect compactification} of a Tychonoff space to a generic extension of any space by introducing the concept of {\it perfect pair}. This allow us to simplify the treatment in a basic way and in a more general setting. Some [S$_1$], [S$_2$], and [D]'s results are improved and new characterizations for perfect (Hausdorff) extensions of spaces are obtained.
Classification : 54D35
Keywords: extension; maximal extension; perfect extension; perfect pair 
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Nordo, Giorgio. A basic approach to the perfect extensions of spaces. Commentationes Mathematicae Universitatis Carolinae, Tome 38 (1997) no. 3, pp. 571-580. http://geodesic.mathdoc.fr/item/CMUC_1997__38_3_a13/