n. In mathematics, a determinant having all the elements of the principal diagonal equal, and those of every row the same as those of any other cyclically transposed.
Word Usage
"But the basic Weyl circulant is only one of the MUB factors, coming from the braided (MUB) 1-circulants, with entries that are roots of unity, give rise to more general large complex matrices with one entry in each row and column."