Abstract
Exponentiable functors between quantaloid-enriched categories are characterized in elementary terms. The proof goes as follows: the elementary conditions on a given functor translate into existence statements for certain adjoints that obey some lax commutativity; this, in turn, is precisely what is needed to prove the existence of partial products with that functor; so that the functor’s exponentiability follows from the works of Niefield (J. Pure Appl. Algebra 23:147–167, 1982) and Dyckhoff and Tholen (J. Pure Appl. Algebra 49:103–116, 1987).
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References
Betti, R.: Automata and closed categories. Boll. Un. Mat. Ital. B Serie V 17, 44–58 (1980)
Borceux, F.: Handbook of Categorical Algebra I. Cambridge University Press, Cambridge (1994)
Clementino, M.M., Hofmann, D.: Exponentiation in \(\mathcal{V}\)-categories. Topology Appl. 153, 3113–3128 (2006)
Dyckhoff, R., Tholen, W.: Exponentiable morphisms, partial products and pullback complements. J. Pure Appl. Algebra 49, 103–116 (1987)
Grandis, M., Paré, R.: Limits in double categories. Cahiers Topologie Géom. Différentielle Catég. 40, 162–220 (1999)
Niefield, S.: Cartesianness: topological spaces, uniform spaces and affine schemes. J. Pure Appl. Algebra 23, 147–167 (1982)
Niefield, S.: Exponentiable morphisms: posets, spaces, locales, and Grothendieck toposes. Theory Appl. Categ. 8, 16–32 (2001)
Rosenthal, K.I.: Free quantaloids. J. Pure Appl. Algebra 72, 67–82 (1991)
Rosenthal, K.I.: Quantaloids, enriched categories and automata theory. Appl. Categ. Structures 3, 279–301 (1995)
Stubbe, I.: Categorical structures enriched in a quantaloid: categories, distributors, functors. Theory Appl. Categ. 14, 1–45 (2005)
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Clementino, M.M., Hofmann, D. & Stubbe, I. Exponentiable Functors Between Quantaloid-Enriched Categories. Appl Categor Struct 17, 91–101 (2009). https://doi.org/10.1007/s10485-007-9104-5
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DOI: https://doi.org/10.1007/s10485-007-9104-5