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Visualizing pseudospectra for polynomial eigenvalue problems
Klimentová, A. ; Šebek, Michael
The use of pseudospectra is widespread in various applications, e.g. control theory, acoustics, vibrating systems. Through pseudospectra we can gain insight into the sensitivity of the eigenvalues of a matrix to perturbations that is convenient for robut control. We have implemented in Matlab a method to visualize e-pseudospectra for n x n polynomial matrix of degree greater that 2. We compute pseudospectrum for each point of the complex plane using transfer function approach.

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