19-XX
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20 19-XX | 18 | Top | 20 |
| 19-00 | General reference works (handbooks, dictionaries, bibliographies, etc.) |
| 19-01 | Instructional exposition (textbooks, tutorial papers, etc.) |
| 19-02 | Research exposition (monographs, survey articles) |
| 19-03 | Historical (must also be assigned at least one classification number from Section 01) |
| 19-04 | Explicit machine computation and programs (not the theory of computation or programming) |
| 19-06 | Proceedings, conferences, collections, etc. |
| 19Axx | Grothendieck groups and K0 [See also 13D15, 18F30] |
| 19Bxx | Whitehead groups and K1 |
| 19Cxx | Steinberg groups and K2 |
| 19Dxx | Higher algebraic K-theory |
| 19Exx | K-theory in geometry |
| 19Fxx | K-theory in number theory [See also 11R70, 11S70] |
| 19Gxx | K-theory of forms [See also 11Exx] |
| 19Jxx | Obstructions from topology |
| 19Kxx | K-theory and operator algebras [See mainly 46L80, and also 46M20] |
| 19Lxx | Topological K-theory [See also 55N15, 55R50, 55S25] |
| 19M05 | Miscellaneous applications of K-theory |