Geodesic
On hereditary and product-stable quotient maps
Commentationes Mathematicae Universitatis Carolinae, Tome 33 (1992) no. 2, pp. 345-352 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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It is shown that the quotient maps of a monotopological construct {\bf A} which are preserved by pullbacks along embeddings, projections, or arbitrary morphisms, can be characterized by being quotient maps in appropriate extensions of {\bf A}.
It is shown that the quotient maps of a monotopological construct {\bf A} which are preserved by pullbacks along embeddings, projections, or arbitrary morphisms, can be characterized by being quotient maps in appropriate extensions of {\bf A}.
Classification : 18A20, 18B30, 54A05, 54B30, 54C10
Keywords: hereditary quotient; product-stable quotient; pull\-back-stable quotient; extensional topological hull; CCT hull; topological universe hull; pretopological spaces; pseudotopological spaces 
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Schwarz, Friedhelm; Weck-Schwarz, Sibylle. On hereditary and product-stable quotient maps. Commentationes Mathematicae Universitatis Carolinae, Tome 33 (1992) no. 2, pp. 345-352. http://geodesic.mathdoc.fr/item/CMUC_1992_33_2_a15/

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