On the approximation of spectra of linear Hilbert space operators

The main topic of this thesis is how to approximate and compute spectra of linear operators on separable Hilbert spaces. We consider several approaches including the finite section method, an infinite-dimensional version of the QR algorithm, as well as pseudospectral techniques. Several new theorems...

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Bibliographic Details
Main Author: Hansen, A. C.
Published: University of Cambridge 2008
Subjects:
Online Access:http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.603665