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math.AG2011★ 3 cited
Deformation functors of local actions
Jakub Byszewski
We study the behaviour of infinitesimal deformation functors of local group actions with regard to passing to subgroups and quotient groups. Inspired by the cohomological informati…
math.AG2007
Which weakly ramified group actions admit a universal formal deformation?
Jakub Byszewski, Gunther Cornelissen
Consider a formal (mixed-characteristic) deformation functor D of a representation of a finite group G as automorphisms of a power series ring k[[t]] over a perfect field k of posi…