12Exx General field theory
- 12E05 Polynomials (irreducibility, etc.)
- 12E10 Special polynomials (1)
- 12E12 Equations
- 12E15 Skew fields, division rings [See also 11R52, 11R54, 11S45, 16Kxx]
- 12E20 Finite fields (field-theoretic aspects)
- 12E25 Hilbertian fields; Hilbert`s irreducibility theorem
- 12E30 Field arithmetic
- 12E99 None of the above, but in this section