Eigenpairs of some imperfect pentadiagonal Toeplitz matrices
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DOI: 10.1016/j.laa.2020.09.014
Abstract: Abstract In this paper we consider pentadiagonal ( n + 1 ) × ( n + 1 ) matrices with two sub-diagonals above and below the main diagonal at distances k and l from the… read more here.
Keywords: pentadiagonal toeplitz; toeplitz matrices; main diagonal; imperfect pentadiagonal ... See more keywords
On the spectrum of tridiagonal matrices with two-periodic main diagonal
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DOI: 10.1515/spma-2024-0009
Abstract: Abstract We find the spectrum and eigenvectors of an arbitrary irreducible complex tridiagonal matrix with two-periodic main diagonal. This is expressed in terms of the spectrum and eigenvectors of the matrix with the same sub-… read more here.
Keywords: tridiagonal matrices; spectrum tridiagonal; main diagonal; two periodic ... See more keywords