3 papers
math.NT2026
An elementary proof of the local Kronecker-Weber theorem
Jochen Koenigsmann, Benedikt Stock
We will present a novel elementary, self-contained, and explicit proof of the local Kronecker-Weber theorem. Apart from discrete valuation theory, it does not make use of any tools…
math.NT2026
The Galois characterisation of -adically closed fields -- A modern perspective
Leo Gitin, Jochen Koenigsmann, Benedikt Stock
In 1927, Artin and Schreier showed that a field is real closed if and only if its absolute Galois group has order two. Inspired by this characterisation and drawing on earlier work…
math.NT2024
Recovering p-adic valuations from pro-p Galois groups
Jochen Koenigsmann, Kristian Strommen
Let be a field with , where denotes the maximal pro-2 quotient of the absolute Galois group of a field . We prove that then adm…