Abstract
Let \(\mathcal{A}\) be an abelian category. A subcategory \(\mathcal{X}\) of \(\mathcal{A}\) is called a resolving subcategory if \(\mathcal{X}\) is closed under extensions and kernels of epimorphisms and contains all projective objects of \(\mathcal{A}\). In this paper, we consider the \(\mathcal{X}\)-resolution dimensions and special \(\mathcal{X}\)-precovers for a resolving subcategory \(\mathcal{X}\) of \(\mathcal{A}.\) Many results in Araya et al. (J Math Kyoto Univ 45:287–306, 2005), Auslander and Bridger (Mem Am Math Soc(94), 1969), Avramov and Martsinkovsky (Proc Lond Math Soc 85:393–440, 2002), Christensen (2000), Christensen et al. (J Algebra 302:231–279, 2006), Holm (J Pure Appl Algebra 189:167–193, 2004), Holm and Jørgensen (J Pure Appl Algebra 205:423–445, 2006), Sather-Wagstaff et al. (Algebr Represent Theor 14:403–428, 2011), Takahashi and White (Math Scand 106:5–22, 2010), White (J Commut Algebra 2:111–137, 2010) and Xu (1996) are generalized.
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Supported by the National Natural Science Foundation of China (No.10971090).
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Zhu, X. Resolving Resolution Dimensions. Algebr Represent Theor 16, 1165–1191 (2013). https://doi.org/10.1007/s10468-012-9351-5
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DOI: https://doi.org/10.1007/s10468-012-9351-5
Keywords
- Resolving subcategories
- Resolving resolution dimensions
- Spacial resolving precovers
- Relative cohomology
- Gorenstein homological dimensions