On the Controllability of Matrix Pairs $( A, K )$ with K Positive Semidefinite, II
David H Carlson · SIAM Journal on Matrix Analysis and Applications · 1994
The subject of the previous article by David Carlson, B. N. Datta, and Hans Schneider [SIAM Journal on Algebraic and Discrete Methods, 5 (1984) pp. 346–350] is revisited to improve and clarify results given there and elsewhere.