@Article{Motyka2015,
author = "Motyka, Wojciech",
title = "Spectra of some selfadjoint Jacobi operators in the double root case",
journal = "Opuscula Math.",
year = "2015",
volume = "35",
number = "3",
pages = "353--370",
doi = "http://dx.doi.org/10.7494/OpMath.2015.35.3.353",
url = "http://dx.doi.org/10.7494/OpMath.2015.35.3.353",
abstract = "In this paper we prove a mixed spectrum of Jacobi operators defined by \(\lambda_n=s(n)(1+x(n))\) and \(q_n=-2s(n)(1+y(n))\), where \((s(n))\) is a real unbounded sequence, \((x(n))\) and \((y(n))\) are some perturbations.",
keywords = "Jacobi matrices, double root case, asymptotic behavior, subordination theory, absolutely continuous spectrum, discrete spectrum",
issn = "1232-9274"
}