Robustness analysis for structured uncertainty
Robust stability with a structured uncertainty
In \mathbf M\boldsymbol \Delta configuration, with \boldsymbol \Delta having some structure \boldsymbol\Delta = \begin{bmatrix} \Delta_1& 0 & \ldots & 0\\ 0 & \Delta_2 & \ldots & 0\\ \vdots\\ 0 & 0 & \ldots & \boldsymbol\Delta_n \end{bmatrix} \|\Delta_i\|_{\infty}\leq 1, \; i=1,\ldots, n