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Deformation data, Belyi maps, and the local lifting problem

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 Added by Stefan Wewers
 Publication date 2008
  fields
and research's language is English




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We prove existence and nonexistence results for certain differential forms in positive characteristic, called {em good deformation data}. Some of these results are obtained by reduction modulo $p$ of Belyi maps. As an application, we solve the local lifting problem for groups with Sylow $p$-subgroup of order $p$.



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