74 citations · 433 across the 39 of their papers we have counts for
47 papers
Neutral representations of finite diagonalizable group schemes and fields of moduli
Giulio Bresciani, Angelo Vistoli, Tianzhi Yang
We introduce the notion of a neutral representation of a finite group, or finite group scheme, ; a representation with the property that if a gerbe over a fiel…
The geometric K-theory of quotient stacks
Francesco Sala, Laurent Schadeck, Angelo Vistoli
Given a quotient of a regular noetherian separated algebraic space over a field by an affine algebraic group having finite stabilizers (with some mild technical conditions)…
Integral Picard group of moduli of polarized K3 surfaces
Andrea Di Lorenzo, Roberto Fringuelli, Angelo Vistoli
We compute the integral Picard group of the moduli stack of polarized K3 surfaces of fixed degree whose singularities are at most rational double points. We also compute the integr…
An arithmetic valuative criterion for proper maps of tame algebraic stacks
Giulio Bresciani, Angelo Vistoli
The valuative criterion for proper maps of schemes has many applications in arithmetic, e.g. specializing -points to -points. For algebraic stacks,…
Fields of moduli and the arithmetic of tame quotient singularities
Giulio Bresciani, Angelo Vistoli
Given a perfect field with algebraic closure and a variety over , the field of moduli of is the subfield of of elements fixe…
The genericity theorem for the essential dimension of tame stacks
Giulio Bresciani, Angelo Vistoli
Let be a regular tame stack. If is locally of finite type over a field, we prove that the essential dimension of is equal to its generic essential dimension, this gener…