Search and Browse the MSC 2000
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} → ZMATH
18D05
Double categories, $2$-categories, bicategories and generalizations → ZMATH
18D10
Monoidal categories (= multiplicative categories), symmetric monoidal categories, braided categories [See also 19D23] → ZMATH
18D15
Closed categories (closed monoidal and Cartesian closed categories, etc.) → ZMATH
18D20
Enriched categories (over closed or monoidal categories) → ZMATH
18D25
Strong functors, strong adjunctions → ZMATH
18D30
Fibered categories → ZMATH
18D35
Structured objects in a category (group objects, etc.) → ZMATH
18D99
None of the above, but in this section → ZMATH