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30 November 1992 Periodic Schur decomposition: algorithms and applications
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In this paper we derive a unitary eigendecomposition for a sequence of matrices which we call the periodic Schur decomposition. We prove its existence and discuss its application to the solution of periodic difference equations arising in control. We show how the classical QR algorithm can be extended to provide a stable algorithm for computing this generalized decomposition. We apply the decomposition also to cyclic matrices and two point boundary value problems. Key words. Numerical algorithms, linear algebra, periodic systems, K-cyclic matrices, two-point boundary value problems
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Adam W. Bojanczyk, Gene H. Golub, and Paul Van Dooren "Periodic Schur decomposition: algorithms and applications", Proc. SPIE 1770, Advanced Signal Processing Algorithms, Architectures, and Implementations III, (30 November 1992);

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