## Mathematics Subject Classification – MSC2010

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

Instructional exposition (textbooks, tutorial papers, etc.) 224

Research exposition (monographs, survey articles) 339

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

Special properties of functors (faithful, full, etc.) 312

Limits and colimits (products, sums, directed limits, pushouts, fiber products, equalizers, kernels, ends and coends, etc.) 1012

Categories admitting limits (complete categories), functors preserving limits, completions 534

Adjoint functors (universal constructions, reflective subcategories, Kan extensions, etc.) 1686

Groupoids, semigroupoids, semigroups, groups (viewed as categories) [See also 20Axx, 20L05, 20Mxx] 552

Monoidal categories (= multiplicative categories), symmetric monoidal categories, braided categories [See also 19D23] 2294

Closed categories (closed monoidal and Cartesian closed categories, etc.) 1023

Enriched categories (over closed or monoidal categories) 675

Structured objects in a category (group objects, etc.) 540