La Classification Mathématique par matières 2000
Mathematics subject Classification 2000

Query : CC = 16D40
16-XX Associative rings and algebras [For the commutative case, see 13-XX]

• 16D40 Free, projective, and flat modules and ideals [See also 18G05, 19A13]

18-XX Category theory; homological algebra [For commutative rings see 13Dxx, for associative rings 16Exx, for groups 20Jxx, for topological groups and related structures 57Txx; see also 55Nxx and 55Uxx for algebraic topology]

• 18G05 Projectives and injectives [See also 13C10, 13C11, 16D40, 16D50]

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