> For the complete documentation index, see [llms.txt](https://mandober.gitbook.io/math-debrief/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mandober.gitbook.io/math-debrief/900-index/980-hierarchy/classification/corr-taxonomy.md).

# Taxonomy: Mathematics

Computing Research Repository (CoRR) style

math.AG - `Algebraic Geometry`

* Algebraic varieties
* stacks
* sheaves
* schemes
* moduli spaces
* complex geometry
* quantum cohomology (subsumes `alg-geom`)

math.AT - `Algebraic Topology`

* Homotopy theory
* homological algebra
* algebraic treatments of manifolds

math.AP - `Analysis of Partial Differential Equations (PDE)`

* Existence and uniqueness
* boundary conditions
* linear and non-linear operators
* stability
* soliton theory
* integrable PDE's
* conservation laws
* qualitative dynamics

math.CT - `Category Theory`

* Enriched categories
* topoi
* abelian categories
* monoidal categories
* homological algebra

math.CA - `Classical Analysis and ODEs`

* Special functions
* orthogonal polynomials
* harmonic analysis
* ODE's
* differential relations
* calculus of variations
* approximations
* expansions
* asymptotics

math.CO - `Combinatorics`

* Discrete mathematics
* graph theory
* enumeration
* combinatorial optimization
* Ramsey theory
* combinatorial game theory

math.AC - `Commutative Algebra`

* Commutative rings
* modules
* ideals
* homological algebra
* computational aspects
* invariant theory
* connections to algebraic geometry and combinatorics

math.CV - `Complex Variables`

* Holomorphic functions
* automorphic group actions and forms
* pseudoconvexity
* complex geometry
* analytic spaces
* analytic sheaves

math.DG - `Differential Geometry`

* Complex
* contact
* Riemannian
* pseudo-Riemannian and Finsler geometry
* relativity
* gauge theory
* global analysis (subsumes dg-ga)

math.DS - `Dynamical Systems`

* Dynamics of differential equations and flows
* mechanics
* classical few-body problems
* iterations
* complex dynamics
* delayed differential equations

math.FA - `Functional Analysis`

* Banach spaces
* function spaces
* real functions
* integral transforms
* theory of distributions
* measure theory (subsumes funct-an)

math.GM - `General Mathematics`

* Mathematical material of general interest
* topics not covered elsewhere

math.GN - `General Topology`

* Continuum theory
* point-set topology
* spaces with algebraic structure
* foundations
* dimension theory
* local and global properties

math.GT - `Geometric Topology`

* Manifolds
* orbifolds
* polyhedra
* cell complexes
* foliations
* geometric structures

math.GR - `Group Theory`

* Finite groups
* topological groups
* representation theory
* cohomology
* classification and structure

math.HO - `History and Overview`

* Biographies
* philosophy of mathematics
* mathematics education
* recreational mathematics
* communication of mathematics

math.IT - `Information Theory` math.IT is an alias for cs.IT. Covers theoretical and experimental aspects of information theory and coding.

math.KT - `K-Theory and Homology`

* Algebraic and topological K-theory
* relations with topology
* commutative algebra
* and operator algebras

math.LO - `Logic`

* Logic
* set theory
* point-set topology
* formal mathematics

math.MP - `Mathematical Physics`

* Mathematical methods in quantum field theory
* quantum mechanics
* statistical mechanics
* condensed matter
* nuclear and atomic physics

math.MG - `Metric Geometry`

* Euclidean
* hyperbolic
* discrete
* convex
* coarse geometry
* comparisons in Riemannian geometry
* symmetric spaces

math.NT - `Number Theory`

* Prime numbers
* Diophantine equations
* Analytic number theory
* Algebraic number theory
* Arithmetic geometry
* Galois theory

math.NA - `Numerical Analysis`

* Numerical algorithms for problems in analysis and algebra
* Scientific computation

math.OA - `Operator Algebras`

* Algebras of operators on Hilbert space
* C^\*-algebras
* von Neumann algebras
* non-commutative geometry

math.OC - `Optimization and Control`

* Operations research
* linear programming
* control theory
* systems theory
* optimal control
* game theory

math.PR - `Probability`

* theory and applications of probability and stochastic processes: e.g. central limit theorems
* large deviations
* stochastic differential equations
* models from statistical mechanics
* queuing theory

math.QA - `Quantum Algebra`

* Quantum groups
* skein theories
* operadic and diagrammatic algebra
* quantum field theory (subsumes q-alg)

math.RT - `Representation Theory`

* Linear representations of algebras and groups
* Lie theory
* associative algebras
* multilinear algebra

math.RA - `Rings and Algebras`

* Non-commutative rings and algebras
* non-associative algebras
* universal algebra and lattice theory
* linear algebra
* semigroups

math.SP - `Spectral Theory`

* Schrodinger operators
* operators on manifolds
* general differential operators
* numerical studies
* integral operators
* discrete models
* resonances
* non-self-adjoint operators
* random operators/matrices

math.ST - `Statistics Theory` math.ST is an alias for `stat.TH`

* Applied
* computational and theoretical statistics: e.g. statistical inference
* regression
* time series
* multivariate analysis
* data analysis
* Markov chain Monte Carlo
* design of experiments
* case studies

math.SG - `Symplectic Geometry`

* Hamiltonian systems
* symplectic flows
* classical integrable systems
