We introduce a theory of cohomological invariants with mod pr coefficients for algebraic stacks in characteristic p. Using these new tools, we complete the computation of the Brauer group and cohomological invariants of the stack of elliptic curves over any field.
Cohomological invariants and Brauer groups of algebraic stacks in positive characteristic / Di Lorenzo, Andrea; Pirisi, Roberto. - In: ALGEBRAIC GEOMETRY. - ISSN 2214-2584. - 12:2(2025), pp. 189-236. [10.14231/ag-2025-006]
Cohomological invariants and Brauer groups of algebraic stacks in positive characteristic
Pirisi, RobertoCo-primo
2025
Abstract
We introduce a theory of cohomological invariants with mod pr coefficients for algebraic stacks in characteristic p. Using these new tools, we complete the computation of the Brauer group and cohomological invariants of the stack of elliptic curves over any field.File in questo prodotto:
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