eva.bayer@epfl.ch, parimala@mathcs.emory.edu, serre@noos.fr
Submission: 2012, Oct 21
Let k be a global field of characteristic not 2. We prove a local-global principle for the existence of self-dual normal bases, and more generally for the isomorphism of G-trace forms, of G-Galois algebras over k.
2010 Mathematics Subject Classification: 20C15 11E12 (11E04)
Keywords and Phrases: Hasse principle, G-trace forms, Galois algebras, induction-restriction methods, Burnside rings
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