 Another example concerns the prehomogeneous vector spaces with a cubic relative invariant.By the Sato-Kimura classification, there are essentially four such examples, and they all come from complexified isotropy representations of hermitian symmetric spaces for a larger group "H" (i.e., "G" is the semisimple part of the stabilizer of a point, and "V" is the corresponding tangent representation).In each case a generic point in "V" identifies it with the complexification of a Jordan algebra of 3 x 3 hermitian matrices (over the division algebras R, C, H and O respectively) and the cubic relative invariant is identified with a suitable determinant.