## 47-XX | 46 | Top | 49 |

47-00 | General reference works (handbooks, dictionaries, bibliographies, etc.) |

47-01 | Instructional exposition (textbooks, tutorial papers, etc.) |

47-02 | Research exposition (monographs, survey articles) |

47-03 | Historical (must also be assigned at least one classification number from Section 01) |

47-04 | Explicit machine computation and programs (not the theory of computation or programming) |

47-06 | Proceedings, conferences, collections, etc. |

47Axx | General theory of linear operators |

47Bxx | Special classes of linear operators |

47Cxx | Individual linear operators as elements of algebraic systems |

47Dxx | Groups and semigroups of linear operators, their generalizations and applications |

47E05 | Ordinary differential operators [See also 34Bxx, 34Lxx] |

47F05 | Partial differential operators [See also 35Pxx, 58Jxx] |

47Gxx | Integral, integro-differential, and pseudodifferential operators [See also 58Jxx] |

47Hxx | Nonlinear operators and their properties {For global and geometric aspects, see 58-XX, especially 58Cxx} |

47Jxx | Equations and inequalities involving nonlinear operators [See also 46Txx] {For global and geometric aspects, see 58-XX} |

47Lxx | Linear spaces and algebras of operators [See also 46Lxx] |

47Nxx | Miscellaneous applications of operator theory [See also 46Nxx] |

47Sxx | Other (nonclassical) types of operator theory [See also 46Sxx] |