Patch: Kronecker tensor product

Submitted by Andreas Platen

Assigned to Nobody

Link to original bugzilla bug (#275)
Version: 3.0

Description

Created attachment 173
Implementation of the Kronecker product for matrices

Hi everybody,

Kolja Brix and I implemented the Kronecker tensor product for dense and sparse matrices, see the attachement for a proposal. At the moment one calls the function by

Eigen::kroneckerProduct(A, B, AB);

where matrix AB will be the Kronecker tensor product of the dense or sparse matrices A and B. If either A or B is of sparse matrix type, then AB has to be a sparse matrix too.

We would like to provide our code, so that it potentially can be integrated into Eigen and be used by everybody.
Is there any chance to do so?

Attachment 173, "Implementation of the Kronecker product for matrices":
KroneckerTensorProduct.h