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math.NT2025
The local obstruction to semi-stable reduction for abelian varieties
Séverin Philip
Grothendieck defined a group that represents the local obstruction for an abelian variety to have semi-stable reduction. These groups were studied by Silverberg and Zarhin and more…
math.NT2025
The -inertial groups as finite monodromy groups
Séverin Philip
Silverberg and Zarhin introduced the notion of a -inertial group in the hope of having a group theoretic characterization of the finite groups that appear as finite monodr…