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arXiv:2009.07671 [math.AG]AbstractReferencesReviewsResources

Cohomological invariants of root stacks and admissible double coverings

Andrea Di Lorenzo, Roberto Pirisi

Published 2020-09-16Version 1

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 stack of admissible double coverings.

Comments: 16 pages, comments welcome!
Categories: math.AG
Subjects: 14D23, 14F22, 14H10
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