Richards, Kendall C.; Denman, Richard T.; Futamura, Fumiko
(Linear Algebra and Its Applications, 2013)
It was recently shown that if M = 1 ⊕ ··· ⊕ k ∈ Cn×n is a
Jordan matrix with k nontrivial Jordan blocks i, then M can be
frame diagonalized by embedding M into a diagonalizable matrix in
C(n+)×(n+) with = k. This ...