A Toeplitz matrix is persymmetric, so is its inverse.

A Toeplitz matrix is persymmetric, so is its inverse.
http://www.math.purdue.edu/~xiaj/teaching/692.11s/notes4.pdf

Persymmetric matrix:

In mathematics, persymmetric matrix may refer to:

1. a square matrix which is symmetric in the northeast-to-southwest diagonal; or
2. a square matrix such that the values on each line perpendicular to the main diagonal are the same for a given line.

http://en.wikipedia.org/wiki/Persymmetric_matrix