Videos

To $p$ or not to $p$: Galois' first glimpse of Hensel on wild grounds

Presenter
May 15, 2014
Keywords:
  • Galois theory
  • Hensel's lemma
  • field valuations
  • pro-p Galois group
  • p-adic interpolation
  • model theory
MSC:
  • 13B40
  • 13B05
  • 13B30
  • 14G32
  • 14G27
  • 14Gxx
  • 13-xx
Abstract
In analysing how $p$-henselian valuations can be encoded in the maximal pro-$p$ Galois group of a field it makes a big difference whether the residual characteristic is equal to $p$ or not to $p$. While the first case is well understood, in this talk we will focus on the second presenting first modest results.