Automorphisms and twisted forms of quotient singularities; notes on a paper of Bresciani--Vistoli

Publication date: 28 October 2022

Abstract: A recent paper of Bresciani and Vistoli studies fields of moduli using residual gerbes. One of their applications is to twisted forms of quotient singularities. We discuss a direct approach to automorphisms and twisted forms, which also works in many wildly ramified cases.

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