We give a formula for the cohomological invariants of a root stack, which we apply to compute the cohomological invariants and the Brauer group of the compactification of the stacks of hyperelliptic curves given by admissible double coverings.

Cohomological invariants of root stacks and admissible double coverings

Pirisi R.
2021

Abstract

We give a formula for the cohomological invariants of a root stack, which we apply to compute the cohomological invariants and the Brauer group of the compactification of the stacks of hyperelliptic curves given by admissible double coverings.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/900994
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