Let (E,g) be a metric vector space with Clifford algebra Cliff(E,g) and the spinor space (Σ(E,g),g′) ; g′ is the real part of the hermitian product. Then I define the spinorial Clifford algebra Cliff(Σ,g,g′) by the following relations:
(X.ψ)(Y.ψ′)+(X.ψ′)(Y.ψ)+(Y.ψ)(X.ψ′)+(Y.ψ′)(X.ψ)=4g(X,Y)g′(ψ,ψ′)
with X,Y in E and ψ,ψ′ in Σ.
Can we study the representations of the spinorial Clifford algebra?