kron_prod

luas.kronecker_fns.kron_prod(A: Array, B: Array, R: Array) → Array

Computes the matrix vector product of the kronecker product of two matrices A and B times a vector r, stored as an (N_l, N_t) array R.

\[[\mathbf{A} \otimes \mathbf{B}] \vec{r} = \mathbf{A} \mathbf{R} \mathbf{B}^T\]

Parameters:

• A (JAXArray) – Matrix on the left side of the kronecker product.

• B (JAXArray) – Matrix on the right side of the kronecker product.

• R (JAXArray) – Vector to right multiply, stored as an (N_l, N_t) array.

Returns:

The result of the multiplication as a JAXArray array of shape (N_l, N_t).

Return type:

JAXArray