A non-discrete locally-compact field: ℝ, ℂ, finite extensions of ℚ_p, or Laurent series 𝔽_q((t)). Classified by the Ostrowski/Pontryagin structure theorems.
A non-discrete locally-compact field: ℝ, ℂ, finite extensions of ℚ_p, or Laurent series 𝔽_q((t)). Classified by the Ostrowski/Pontryagin structure theorems.