Hovey pairs in $\mathbb{C}_N(\mathcal{G})$

Document Type : Research Paper

Authors

Department of Pure Mathematics‎, ‎Faculty of Mathematical Sciences‎, ‎University of Guilan‎, ‎Rasht‎, ‎Iran

Abstract

One approach to construct a model structure on $C_N(\mathcal{A})$, the category of $N$-complexes over an abelian category $\mathcal{A}$, is to start with a complete hereditary cotorsion pair $(\mathcal{F},\mathcal{C})$ in
$\mathcal{A}$ and then introduce Hovey pairs on $C_N(\mathcal{A})$. There are three important pairs of cotorsion pairs in the literature. In this paper, we employ a different technique by considering $\mathcal{A}$ as a Grothendieck category to introduce these Hovey pairs. For these pairs of cotorsion pairs, we omit the hereditary conditions, the conditions of having enough $\mathcal{F}$-objects as well as the condition of being closed under direct limits for the class $\mathcal{F}$. So we can construct Hovey pairs on categories that do not necessarily have enough $\mathcal{F}$-objects or where the class of objects is not closed under direct limits such as the category of Cartesian modules over small categories and the category of quasi-coherent sheaves on a scheme $\mathbb{X}$.

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