Some results concerning block Toeplitz matrices
Muhammad Ahsan Khan · Research Square · 2022
Abstract Given A,B,C, and D, block Toeplitz matrices, we will prove the necessary and sufficient condition for AB − CD = 0, and AB − CD to be a block Toeplitz matrix. In addition, with respect to change of basis, the characterization of normal block Toeplitz matrices with entries from the algebra of diagonal matrices is also obtained.