List questions from class-field-theory | MathQa

Neukirch and a congruence condition.

Published on 03 Jan 2025 - 12:23

Class field theory for $p$-groups. (IV.6, exercise 3 from Neukirch's ANT.)

Published on 12 Jan 2025 - 9:12

Why is the group of principal units of a local field uniquely divisible by $n$?

Published on 27 Dec 2024 - 23:58

Non-open subgroups of finite index in the idele class group of a number field

Published on 28 Dec 2024 - 4:02

kernel of the artin map when dealing with S-ideles and S-divisors for function fields

Published on 12 Jan 2025 - 9:20

Variant of strong approximation.

Published on 12 Jan 2025 - 21:44

Divisibility of Differents in Tower of Fields

Published on 04 Jan 2025 - 13:43

Group cohomology or classical approach for class field theory?

Published on 29 Dec 2024 - 14:25

Is $\mathbb{Q}(\zeta_5)/\mathbb{Q}(\sqrt5)$ the maximal finite abelian extension of $\mathbb{Q}(\sqrt5)$ unramified away from $5\infty$?

Published on 04 Jan 2025 - 13:46

how can I prove this statement in local field theory?

Published on 12 Jan 2025 - 9:12