Geodesic
Cohomological invariants of root stacks and admissible double coverings
Canadian journal of mathematics, Tome 75 (2023) no. 1, pp. 202-224

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DOI

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.
DOI : 10.4153/S0008414X21000602
Mots-clés : Cohomological invariants, root stacks, hyperelliptic curves, admissible coverings 
Lorenzo, Andrea Di; Pirisi, Roberto. Cohomological invariants of root stacks and admissible double coverings. Canadian journal of mathematics, Tome 75 (2023) no. 1, pp. 202-224. doi: 10.4153/S0008414X21000602
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     title = {Cohomological invariants of root stacks and admissible double coverings},
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     year = {2023},
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     doi = {10.4153/S0008414X21000602},
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