|
Mathematics 2008
Pfister's Theorem for orthogonal involutions of degree 12DOI: 10.1090/S0002-9939-08-09674-3 Abstract: We use the fact that a projective half-spin representation of $Spin_{12}$ has an open orbit to generalize Pfister's result on quadratic forms of dimension 12 in $I^3$ to orthogonal involutions.
|