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

18Axx General theory of categories and functors → ZMATH

18A05 Definitions, generalizations → ZMATH

18A10 Graphs, diagram schemes, precategories [See especially 20L05] → ZMATH

18A15 Foundations, relations to logic and deductive systems [See also 03-XX] → ZMATH

18A20 Epimorphisms, monomorphisms, special classes of morphisms, null morphisms → ZMATH

18A22 Special properties of functors (faithful, full, etc.) → ZMATH

18A23 Natural morphisms, dinatural morphisms → ZMATH

18A25 Functor categories, comma categories → ZMATH

18A30 Limits and colimits (products, sums, directed limits, pushouts, fiber products, equalizers, kernels, ends and coends, etc.) → ZMATH

18A32 Factorization of morphisms, substructures, quotient structures, congruences, amalgams → ZMATH

18A35 Categories admitting limits (complete categories), functors preserving limits, completions → ZMATH

18A40 Adjoint functors (universal constructions, reflective subcategories, Kan extensions, etc.) → ZMATH

18A99 None of the above, but in this section → ZMATH