Spectral Perturbation & Optimization of Matrix Pencils

Spectral Perturbation & Optimization of Matrix Pencils
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Publisher : BoD – Books on Demand
Total Pages : 134
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ISBN-10 : 9783863602468
ISBN-13 : 3863602463
Rating : 4/5 (463 Downloads)

Book Synopsis Spectral Perturbation & Optimization of Matrix Pencils by : Hannes Gernandt

Download or read book Spectral Perturbation & Optimization of Matrix Pencils written by Hannes Gernandt and published by BoD – Books on Demand. This book was released on 2021-01-01 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis we study the eigenvalues of linear matrix pencils and their behavior under perturbations of the pencil coefficients. In particular we address (i) Possibility of eigenvalue assignment under structured rank-one perturbations; (ii) Distance to nearest pencils with a prescribed set of eigenvalues in norm and gap distance; (iii) Computing nearest matrix pencils with prescribed eigenvalues using structured perturbations. In (i) and (ii) we exploit the connection between matrix pencils and certain subspaces via their Weyr characteristics. This provides a way of lifting perturbation measures for subspaces such as the gap distance to the set of matrix pencils. In (iii) one has to solve a large scale non-convex optimization problem which appears e.g. in optimal redesign of integrated circuits. We show how feasible solutions close to the optimal value can be computed. Finally, this is used to improve the bandwidth of two circuits (two-stage CMOS & μA741).


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