Abstract
Originally, exponentiable pretopological spaces X (i.e. −×X preserves quotients) were described by Lowen-Colebunders and Sonck as the finitely generated ones. Following a philosophy by I. M. James, a fibrewise notion of the latter property is introduced. Surprisingly or not, it turns out to characterize exponentiable maps.
Similar content being viewed by others
References
Freyd, P.: Abelian Categories, Harper and Row, New York, 1964.
James, I. M.: Fibrewise Topology, Cambridge Univ. Press, Cambridge, 1989.
Kent, D. C.: Convergence quotient maps, Fundamenta Mathematicae 65 (1969), 197–205.
Lowen-Colebunders, E. and Sonck, G.: Exponential objects and Cartesian closedness in the construct Prtop, Applied Categorical Structures 1 (1993), 345–360.
Richter, G.: More on exponential objects in categories of pretopological spaces, Applied Categorical Structures 5 (1997), 309–319.
Richter, G.: Exponentiable maps and triquotients in Top, Journal of Pure and Applied Algebra 168 (2002), 99–105.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Richter, G. A Characterization of Exponentiable Maps in PrTop . Applied Categorical Structures 11, 261–265 (2003). https://doi.org/10.1023/A:1024241115556
Issue Date:
DOI: https://doi.org/10.1023/A:1024241115556