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math.AG2014★ 1 cited
Cohomological invariants of hyperelliptic curves of even genus
Roberto Pirisi
Let be an even positive integer, and be a prime number. We compute the cohomological invariants with coefficients in of the stacks of hyperelliptic…
math.AG2014
Cohomological invariants of algebraic stacks
Roberto Pirisi
The purpose of this paper is to lay the foundations of a theory of invariants in étale cohomology for smooth Artin stacks. We compute the invariants in the case of the stack of ell…