### 47-XX Operator theory

- 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 be assigned at least one classification number from 01-XX)
- 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 Algebraic systems of linear operators, see also {46Lxx}
- 47E05 Ordinary differential operators, See also {34Bxx, 34Lxx,
58F19}
- 47F05 Partial differential operators, See also {35Pxx, 58G05}
- 47Gxx Integral, integro-differential, and pseudodifferential operators
- 47Hxx Nonlinear operators, {For global and geometric aspects, see 58-XX, especially 58Cxx}
- 47Nxx Miscellaneous applications of operator theory, see Also {
46Nxx}
- 47Sxx Other (nonclassical) types of operator theory, see Also {
46Sxx}

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