Geodesic
A note on free regular and exact completions and their infinitary generalizations
Theory and applications of categories, Tome 2 (1996), pp. 113-132

Voir la notice de l'article provenant de la source Theory and Applications of Categories website

Free regular and exact completions of categories with various ranks of weak limits are presented as subcategories of presheaf categories. Their universal properties can then be derived with standard techniques as used in duality theory.

Classification : 18A35, 18E10, 18G05.
Keywords: regular category, exact category, regular completion, exact completion, flat functor, accessible category. 
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     title = {A note on free regular and exact
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     url = {http://geodesic.mathdoc.fr/item/TAC_1996_2_a9/}
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Hongde Hu; Walter Tholen. A note on free regular and exact
completions and their infinitary generalizations. Theory and applications of categories, Tome 2 (1996), pp. 113-132. http://geodesic.mathdoc.fr/item/TAC_1996_2_a9/