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Stability margins of diagonally perturbed multivariable feedback systems. (English) Zbl 0505.93057
Decision and control, Proc. 20th IEEE Conf., incl. Symp. Adaptive processes, San Diego/Calif. 1981, Vol. 3, 1472-1478 (1981).

93D25 Input-output approaches in control theory
34D10 Perturbations of ordinary differential equations
93C35 Multivariable systems, multidimensional control systems
15B48 Positive matrices and their generalizations; cones of matrices
93C05 Linear systems in control theory
93C99 Model systems in control theory