# MSC classification: Top Levels

00-xx: General 01-xx: History and biography 03-xx: Mathematical logic 03-xx: Mathematical foundations 05-xx: Combinatorics 06-xx: Order, lattices, ordered algebraic structures 08-xx: General algebraic systems 11-xx: Number theory 12-xx: Field theory and polynomials 13-xx: Commutative rings and algebras 14-xx: Algebraic geometry 15-xx: Linear and multilinear algebra; matrix theory 16-xx: Associative rings and algebras 17-xx: Nonassociative rings and algebras 18-xx: Category theory; homological algebra 19-xx: K-theory 20-xx: Group theory and generalizations 20Bxx: Permutation groups 20P05: Probabilistic methods in group theory 22-xx: Topological groups, Lie groups 26-xx: Real functions 28-xx: Measure and integration 30-xx: Functions of a complex variable 31-xx: Potential theory 32-xx: Several complex variables and analytic spaces 33-xx: Special functions (properties of functions as functions) 34-xx: Ordinary differential equations 35-xx: Partial differential equations 37-xx: Dynamical systems and ergodic theory 39-xx: Difference and functional equations 40-xx: Sequences, series, summability 41-xx: Approximations and expansions 42-xx: Fourier analysis 43-xx: Abstract harmonic analysis 44-xx: Integral transforms, operational calculus 45-xx: Integral equations 46-xx: Functional analysis 47-xx: Operator theory 49-xx: Calculus of variations and optimal control; optimization 51-xx: Geometry 52-xx: Convex and discrete geometry 53-xx: Differential geometry 54-xx: General topology 55-xx: Algebraic topology 57-xx: Manifolds and cell complexes 58-xx: Global analysis, analysis on manifolds 60-xx: Probability theory and stochastic processes 62-xx: Statistics 65-xx: Numerical analysis 68-xx: Computer science 70-xx: Mechanics of particles and systems 74-xx: Mechanics of deformable solids 76-xx: Fluid mechanics 78-xx: Optics, electromagnetic theory 80-xx: Classical thermodynamics, heat transfer 81-xx: Quantum theory 82-xx: Statistical mechanics, structure of matter 83-xx: Relativity and gravitational theory 85-xx: Astronomy and astrophysics 86-xx: Geophysics 90-xx: Operations research, mathematical programming 91-xx: Game theory, economics, social and behavioral sciences 92-xx: Biology and other natural sciences 93-xx: Systems theory; control 94-xx: Information and communication, circuits 97-xx: Mathematics education


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