Title : Trace forms of Galois field extensions in the presence of roots
of unity
Abstract : Let $L/K$ be a Galois field extension and let $G_2$ be a
Sylow subgroup of $Gal(L/K)$. We show that if $G_2$ is not abelian
then the trace form of $L/K$ is hyperbolic, provided that $K$ contains
certain roots of unity.
Dong Seung Kang
BK21 Post-doc Position
Seoul National University