Rigid model equations

Rigid model rotation matrices

For the rigid model, there is no motion so the rotation matrix is simply the identity matrix

$$\begin{pmatrix} 1 & . & . \\ . & 1 & . \\ . & . & 1 \\ \end{pmatrix}$$ (16.2)

Rigid frame order matrix

The frame order matrix is

Daeg⁽ⁿ⁾ = R^⊗n, (16.3)

where surface normalisation factor is 1.

Rigid 1 degree frame order

The 1 degree frame order matrix with tensor rank-2 is the identity matrix

Rigid 2 degree frame order

The 2 degree frame order matrix with tensor rank-4 is the identity matrix