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Results tagged with absolute-galois-group
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user 1826
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Are class numbers encoded in the absolute Galois group of ${\mathbb Q}$?
Dear Tim,
As you're probably aware, this is part of the 'anabelian' etcetera.
It suffices to recover all intertia subgroups $I_v\subset H$, because their union will then be a normal subgroup $N$ su …
- 13.6k
37
votes
What can we say about center of rational absolute Galois group?
The proof of triviality is a step in the famous Neukirch-Uchida theorem of anabelian geometry, which says a number field is characterized by its absolute Galois group, even functorially, in an appropr …
- 13.6k