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Jacobi matrices: properties and possible generalizations
 Preradová, Alena ; Hnětynková, Iveta (advisor) ; Duintjer Tebbens, Erik Jurjen (referee)
This thesis summarizes basic properties of Jacobi matrices and studies their selected structural generalizations, represented by special types of band, block tridiagonal and wedge-shaped matrices. Furthermore, it describes two Krylov subspace methods connected with Jacobi matrices, namely the Lanczos iterative tridiagonalization and the Golub-Kahan iterative bidiagonalization, and their block generalizations. The thesis shows, how block methods generate in each step generalised Jacobi matrices mentioned above. Main goal is to study spectral properties of these matrices focused on ivestigation of multiplicity of eigenvalues and nonzero components of eigenvectors. Powered by TCPDF (www.tcpdf.org)
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