The base change of the monodromy group for geometric Tannakian pairs
classification
🧮 math.AG
keywords
groupmonodromybasechangecharacteristiccommutesextendingextension
read the original abstract
We prove that in any characteristic the formation of the monodromy group of a $\mathscr{D}$-module commutes with the extension of the ground field, extending a result of Gabber for separable extensions.
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