Algebraic geometry Categories (Mathematics) Categorías (Matemáticas) 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 Catégories (Mathématiques) Families, fibrations General theory of differentiable manifolds [See also 32Cxx] Global analysis, analysis on manifolds [See also 32Cxx, 32Fxx, 32Wxx, 46-XX, 47Hxx, 53Cxx] {For geometric integration theory, see 49Q15} Orbifolds Stacks and moduli problems Topos (Matemáticas) Topos (Mathématiques) Toposes