Commentarii Mathematici Helvetici


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Volume 72, Issue 1, 1997, pp. 1–15
DOI: 10.1007/PL00000360

Published online: 1997-03-31

Cohomologie des groupes et corps d’invariants multiplicatifs tordus

J. Barge[1]

(1) École Polytechnique, Palaiseau, France

We give a cohomological calculation of the unramified Brauer group of a field of invariants under a twisted multiplicative action of a finite group.

Keywords: Cohomology of groups, Brauer group, multiplicative fields of invariants

Barge J.: Cohomologie des groupes et corps d’invariants multiplicatifs tordus. Comment. Math. Helv. 72 (1997), 1-15. doi: 10.1007/PL00000360