## Mathematics Subject Classification – MSC2010

General reference works (handbooks, dictionaries, bibliographies, etc.) 18

Instructional exposition (textbooks, tutorial papers, etc.) 229

Research exposition (monographs, survey articles) 351

Explicit machine computation and programs (not the theory of computation or programming) 35

Special properties of functors (faithful, full, etc.) 327

Limits and colimits (products, sums, directed limits, pushouts, fiber products, equalizers, kernels, ends and coends, etc.) 1037

Categories admitting limits (complete categories), functors preserving limits, completions 538

Adjoint functors (universal constructions, reflective subcategories, Kan extensions, etc.) 1725

Groupoids, semigroupoids, semigroups, groups (viewed as categories) [See also 20Axx, 20L05, 20Mxx] 592

Monoidal categories (= multiplicative categories), symmetric monoidal categories, braided categories [See also 19D23] 2439

Closed categories (closed monoidal and Cartesian closed categories, etc.) 1040

Enriched categories (over closed or monoidal categories) 700

Structured objects in a category (group objects, etc.) 564