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math.OC2026
On the real angular stability radius for sectorial matrices
Sei Zhen Khong, Xin Mao, Li Qiu +1
The real stability radius problem asks for the smallest real perturbation that makes a given matrix lose rank, and it is a structured counterpart of the corresponding complex stabi…
math.OC2022★ 6 cited
Gain and phase type multipliers for feedback robustness
Axel Ringh, Xin Mao, Wei Chen +2
It is known that the stability of a feedback interconnection of two linear time-invariant systems implies that the graphs of the open-loop systems are quadratically separated. This…