Stable reduction of three point covers
This note gives a survey of some recent results on the stable reduction of covers of the projective line branched at three points.
Reduction and lifting of special metacyclic covers
Formal deformation of curves with group scheme action
We study equivariant deformations of singular curves with an action of a finite flat group scheme, using a simplified version of Illusie's equivariant cotangent complex. We apply these methods in a special case which is relevant for the study of the stable reduction of three point covers.
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