The Spectrum of a Glued Matrix

DOI10.1137/070687062zbMath1187.15012OpenAlexW1974699664MaRDI QIDQ5190221

Christof Vömel, Beresford N. Parlett

Publication date: 15 March 2010

Published in: SIAM Journal on Matrix Analysis and Applications (Search for Journal in Brave)

Full work available at URL: https://semanticscholar.org/paper/4d7aca5b148705e8695ed8250f0b78c1ddbdb8f1

zbMATH Keywords

numerical examplessecular equationeigenvalue clustersreal symmetric tridiagonal matricesglued matrixrank-1 gluingrank-2 gluing

Mathematics Subject Classification ID

Computational methods for sparse matrices (65F50) Factorization of matrices (15A23) Numerical computation of eigenvalues and eigenvectors of matrices (65F15) Eigenvalues, singular values, and eigenvectors (15A18) Hermitian, skew-Hermitian, and related matrices (15B57)

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Coalescing points for eigenvalues of banded matrices depending on parameters with application to banded random matrix functions

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