A cohomological treatise of HKG-covers with applications to
the Nottingham group
Kontogeorgis, Aristides and Tsouknidas, Ioannis
Abstract
We characterize Harbater-Katz-Gabber curves in terms of
a family of cohomology classes satisfying a compatibility
condition. Our construction is applied to the description of
finite subgroups of the Nottingham Group
