Bondarenko, V. M.; Gildea, J.; Tylyshchak, A. A.; Yurchenko, N.V.
(2019)
A 2-monomial matrix over a commutative ring
R is by definition any matrix of the form M(t, k, n) = Φ
Ik 0
0 tIn−k
,
0 < k < n, where t is a non-invertible element of R, Φ the companion
matrix to λ
n − 1 and Ik ...