Geodesic
Natural Covers and R-Quotient Maps
Canadian mathematical bulletin, Tome 25 (1982) no. 4, pp. 456-461

Voir la notice de l'article provenant de la source Cambridge University Press

We extend the comprehensive treatment of k-spaces and sequential spaces provided by Franklin's refined notion of a natural cover to k R -spaces and s R -spaces. For this purpose, an apparently unstudied class of maps of topological spaces, the class of R-quotient maps, is introduced.
DOI : 10.4153/CMB-1982-065-1
Mots-clés : 54A10, 54C99, 54D50, 54D55 
Karnik, S. M.; Willard, S. Natural Covers and R-Quotient Maps. Canadian mathematical bulletin, Tome 25 (1982) no. 4, pp. 456-461. doi: 10.4153/CMB-1982-065-1
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