**Mathematical Specialties for Mailing Lists**

00 | General | 19,378 |

01 | History and biography | 11,224 |

03 | Mathematical logic and foundations | 6,467 |

05 | Combinatorics | 9,799 |

06 | Orders, lattices, ordered algebraic structures | 2,469 |

08 | General algebraic systems | 2,277 |

11 | Number theory | 12,365 |

12 | Field theory and polynomials | 4,708 |

13 | Commutative rings and algebras | 5,304 |

14 | Algebraic geometry | 9,402 |

15 | Linear and multilinear algebra; matrix theory | 6,296 |

16 | Associative rings and algebras | 3,976 |

17 | Nonassociative rings and algebras | 3,237 |

18 | Category theory, homological algebra | 3,712 |

19 | K-theory | 2,402 |

20 | Group theory and generalizations | 7,914 |

22 | Topological groups, Lie groups | 6,311 |

26 | Real functions | 5,707 |

28 | Measure and integration | 6,183 |

30 | Functions of a complex variable | 6,500 |

31 | Potential theory | 1,979 |

32 | Several complex variables and analytic spaces | 4,312 |

33 | Special functions | 2,692 |

34 | Ordinary differential equations | 8,544 |

35 | Partial differential equations | 12,250 |

37 | Dynamical systems and ergodic theory | 5,224 |

39 | Finite differences and functional equations | 2,339 |

40 | Sequences, series, summability | 2,445 |

41 | Approximations and expansions | 3,019 |

42 | Fourier analysis | 5,334 |

43 | Abstract harmonic analysis | 2,540 |

44 | Integral transforms, operational calculus | 1,741 |

45 | Integral equations | 2,079 |

46 | Functional analysis | 8,728 |

47 | Operator theory | 5,547 |

49 | Calculus of variations and optimal control; optimization | 5,435 |

51 | Geometry | 6,350 |

52 | Convex and discrete geometry | 3,257 |

53 | Differential geometry | 8,669 |

54 | General topology | 4,594 |

55 | Algebraic topology | 5,893 |

57 | Manifolds and cell complexes | 5,738 |

58 | Global analysis, analysis on manifolds | 6,969 |

60 | Probability theory and stochastic processes | 9,428 |

62 | Statistics | 5,162 |

65 | Numerical analysis | 7,588 |

68 | Computer science | 8,721 |

70 | Mechanics of particles and systems | 3,111 |

74 | Mechanics of deformable solids | 1,482 |

76 | Fluid mechanics | 3,804 |

78 | Optics, electromagnetic theory | 1,633 |

80 | Classical thermodynamics, heat transfer | 1,202 |

81 | Quantum theory | 5,982 |

82 | Statistical physics, structure of matter | 2,311 |

83 | Relativity and gravitational theory | 3,163 |

85 | Astronomy and astrophysics | 1,824 |

86 | Geophysics | 938 |

90 | Operations research, mathematical programming | 5,025 |

91 | Game theory, economics, social and behavorial sciences | 4,341 |

92 | Biology and other natural sciences | 4,549 |

93 | Systems theory; control | 2,727 |

94 | Information and communications, circuits | 3,120 |

97 | Mathematics education | 7,428 |