Some Sufficient and Some Necessary Conditions for the Stability of Multivariable Systems
Leang San Shieh, Chao D. Shih, ROBERT E. YATES · Journal of Dynamic Systems Measurement and Control · 1978
Some sufficient and some necessary conditions for the stability of a class of multivariable systems represented by matrix polynomials are derived. A new linear block transformation is also established for transforming an observable block companion form to the block Schwarz form.