| 26B05 | Continuity and differentiation questions |
| 26B10 | Implicit function theorems, Jacobians, transformations with several variables |
| 26B12 | Calculus of vector functions |
| 26B15 | Integration: length, area, volume
[See also 28A75, 51M25] |
| 26B20 | Integral formulas (Stokes, Gauss, Green, etc.) |
| 26B25 | Convexity, generalizations |
| 26B30 | Absolutely continuous functions, functions of bounded variation |
| 26B35 | Special properties of functions of several variables, Hölder conditions, etc. |
| 26B40 | Representation and superposition of functions |
| 26B99 | None of the above, but in this section |
26A | 
26 | 
26C