| MSC 1991 | Number of Preprints | |
| 47-XX | Operator theory
| 3 | browse |
| 47-00 | General reference works (handbooks, dictionaries, bibliographies, etc.)
| 3 | browse |
| 47-01 | Instructional exposition (textbooks, tutorial papers, etc.)
| 3 | browse |
| 47-02 | Research exposition (monographs, survey articles)
| 3 | browse |
| 47-03 | Historical
| 3 | browse |
| 47-04 | Explicit machine computation and programs (not the theory of computation or programming)
| 3 | browse |
| 47-06 | Proceedings, conferences, collections, etc.
| 3 | browse |
| 47Axx | General theory of linear operators
| 70 | browse |
| 47Bxx | Special classes of linear operators
| 108 | browse |
| 47Cxx | Individual linear operators as elements of algebraic systems
| 1 | browse |
| 47Dxx | Algebraic systems of linear operators
| 25 | browse |
| 47E05 | Ordinary differential operators
| 11 | browse |
| 47F05 | Partial differential operators
| 5 | browse |
| 47Gxx | Integral, integro-differential, and pseudodifferential operators
| 14 | browse |
| 47Hxx | Nonlinear operators
| 52 | browse |
| 47Nxx | Miscellaneous applications of operator theory
| 7 | browse |
| 47Sxx | Other (nonclassical) types of operator theory
| - | |