18-XX |
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Category theory; homological algebra {For commutative rings, see 13Dxx; for associative rings, see 16Exx; for groups, see 20Jxx; for topological groups and related structures, see 57Txx; for algebraic topology, see also 55Nxx, 55Uxx} |
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18Exx |
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Categorical algebra |
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18E05 |
Preadditive, additive categories |
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18E08 |
Regular categories, Barr-exact categories |
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18E10 |
Abelian categories, Grothendieck categories |
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18E13 |
Protomodular categories, semi-abelian categories, Mal'tsev categories [See also 08B05 and 08B10] |
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18E20 |
Categorical embedding theorems [See also 18B15] |
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18E35 |
Localization of categories, calculus of fractions {For homotopical aspects, see also 18N55, 55P60} |
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18E40 |
Torsion theories, radicals [See also 13D30, 16S90] |
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18E45 |
Definable subcategories and connections with model theory [See also 13C60] |
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18E50 |
Categorical Galois theory |
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18E99 |
None of the above, but in this section |