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The heart of a combinatorial model category
Theory and applications of categories, Tome 31 (2016), pp. 31-62

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We show that every small model category that satisfies certain size conditions can be completed to yield a combinatorial model category, and conversely, every combinatorial model category arises in this way. We will also see that these constructions preserve right properness and compatibility with simplicial enrichment. Along the way, we establish some technical results on the index of accessibility of various constructions on accessible categories, which may be of independent interest.

Publié le :
Classification : 18G55, 55U35 (Primary) 18D35, 55P60 (Secondary)
Keywords: cofibrant generation, closed model category, weak factorization system, locally presentable category, ind-object, filtered colimit 
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     author = {Zhen Lin Low},
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Zhen Lin Low. The heart of a combinatorial model category. Theory and applications of categories, Tome 31 (2016), pp. 31-62. http://geodesic.mathdoc.fr/item/TAC_2016_31_a1/