Matrix representations of Toeplitz-plus-Hankel matrix inverses
Some matrix representations for the inverses of Toeplitz-plus-Hankel \((T+H)\) matrices are given as well as for \(T+H\)-Bézoutians introduced before by the authors. This representation is given as sum of products of triangular \(T+H\)-matrices. The conditions for these inverses are determined by some columns and rows of the inverse matrix or by solutions of certain homogeneous fundamental equations.
inverses of Toeplitz-plus-Hankel matrices
scientific article; zbMATH DE number 4083828