Potter, Wielandt, and Drazin on the Matrix Equation AB = wBA: New Answers to Old Questions
Olga Holtz, Volker Mehrmann, Hans Schneider · American Mathematical Monthly · 2004
Olga Holtz, Volker Mehrmann, Hans Schneider, Potter, Wielandt, and Drazin on the Matrix Equation AB = ωBA: New Answers to Old Questions, The American Mathematical Monthly, Vol. 111, No. 8 (Oct., 2004), pp. 655-667