# Kronecker Product

Hi everyone,

Suppose w be a n x n symmetric matrix and D be n x m matrix.

Let A=wDDw.

Is it possible to write the matrix, AA= (wDDw)(wDDw) as the kronecker product of any two matrices?

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Every matrix B is a Kronecker product $X\otimes Y$, where X=B and Y is 1x1 identity matrix.

Thanks a lot Arkazad. You are right. However, what I want is to multiply

(A kronecker product B) by (AA), where B is also a n x n matrix. You observe that this is not even defined. I don't know may be this is impossible, because I can not change the dimension of AA.

Any further idea???