/ frequency domain techniques / Hurwitz stability / Kharitonov’s Theorem / Linear Time Invariant / Lyapunov stability methods / multivariable control theory / nonlinear system modeling / Nyquist Plots / parametric uncertainty analysis / Phase margin / robust multiobjective controller synthesis / Robust Stability Problems / Schur Stability / small gain theorem / Stability Margin / State Feedback Case / TECHNOLOGY & ENGINEERING / Automation / Transfer function matrix / Uncertain Parameter Vector / Uncertainty Set / Unstructured Perturbations / Youla Parametrization