Article ID Journal Published Year Pages File Type
752664 Systems & Control Letters 2010 8 Pages PDF
Abstract

Structured singular values and pseudospectra play an important role in assessing the properties of a linear system under structured perturbations. This paper discusses computational aspects of structured pseudospectra for structures that admit an eigenvalue minimization characterization, including the classes of real, skew-symmetric, Hermitian, and Hamiltonian perturbations. For all these structures we develop algorithms that require O(n2)O(n2) operations per grid point, combining the Schur decomposition with a Lanczos method. These algorithms form the basis of a graphical Matlab interface for plotting structured pseudospectra.

Related Topics
Physical Sciences and Engineering Engineering Control and Systems Engineering
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