1. Several NP-Hard Problems Arising in Robust Stability Analysis;Nemirovskii;Mathematics of Control, Signal and Systems,1993
2. Checking Robust Nonsingularity is NP-Hard;Rohn;Mathematics of Control, Signals and Systems,1993
3. Computing the Structured Real Singular Value is NP-Hard;Coxson,1992
4. Computational Complexity of μ Calculation;Braatz,1993
5. Stochastic Robustness of Linear Time-Invariant Systems;Stengel;IEEE Transactions on Automatic Control,1991