58Hxx | 58E | 58 | 58J |
| 58H05 | Pseudogroups and differentiable groupoids [See also 22A22, 22E65] |
| 58H10 | Cohomology of classifying spaces for pseudogroup structures (Spencer, Gelfand-Fuks, etc.) [See also 57R32] |
| 58H15 | Deformations of structures [See also 32Gxx, 58J10] |
| 58H99 | None of the above, but in this section |