12Jxx Topological fields
- 12J05 Normed fields
- 12J10 Valued fields
- 12J12 Formally p-adic fields
- 12J15 Ordered fields
- 12J17 Topological semifields
- 12J20 General valuation theory [See also 13A18]
- 12J25 Non-Archimedean valued fields [See also 30G06, 32P05, 46S10, 47S10] (1)
- 12J27 Krasner-Tate algebras [See mainly 32P05; see also 46S10, 47S10]
- 12J99 None of the above, but in this section