A cohomological treatise of HKG-covers with applications to the Nottingham group
Aristides KontogeorgisIoannis Tsouknidas
所有作者
Aristides KontogeorgisIoannis Tsouknidas
文献摘要
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.