Let k be a field of characteristic 2, and let G be a finite group. The aim of this article is to give a cohomological criterion for the isomorphism of multiples of trace forms of G-Galois algebras over k. The proof uses results concerning multiples of hermitian forms over division algebras with involution that are of independent interest.
Nihar Prakash Gargava, Vlad Serban
Eva Bayer Fluckiger, Ting-Yu Lee