AbstractUsing the conjugate operator method of Mourre we study the spectral theory of a class of unbounded Jacobi matrices. We especially focus on the case where the off-diagonal entries an=nα(1+o(1)) and diagonal ones bn=λnα(1+o(1)) with α>0, λ∈R
AbstractWe study stability of spectral types for semi-infinite self-adjoint tridiagonal matrices und...
This paper investigates the minimal symmetric operator bounded from below and generated by the real...
We study the spectrum of unbounded J-self-adjoint block operator matrices. In particular, we prove e...
AbstractWe establish sufficient conditions for self-adjointness on a class of unbounded Jacobi opera...
AbstractWe use elementary methods to give a full characterization of the spectral properties of unbo...
AbstractThis paper uses commutator equations to study the absolute continuity of spectral measures a...
AbstractWe consider a class of Jacobi matrices with unbounded coefficients. This class is known to e...
AbstractWe study the spectral properties of Jacobi matrices with the weights satisfying λ2n−1=λ2n=na...
We discuss the proof of and systematic application of Case's sum rules for Jacobi matrices. Of speci...
We study the spectrum of unbounded JJ -self-adjoint block operator matrices. In particular, we prove...
We discuss the proof of and systematic application of Case's sum rules for Jacobi matrices. Of speci...
AbstractIn this article, we relate the properties of elements of a Jacobi matrix from certain class ...
We consider self-adjoint unbounded Jacobi matrices with diagonal \(q_n = b_{n}n\) and off-diagonal ...
AbstractThe paper deals with Jacobi matrices with weights λk given by λk=kα(1+Δk), where α∈(12, 1) a...
We study the spectrum of unbounded J-self-adjoint block operator matrices. In particular, we prove e...
AbstractWe study stability of spectral types for semi-infinite self-adjoint tridiagonal matrices und...
This paper investigates the minimal symmetric operator bounded from below and generated by the real...
We study the spectrum of unbounded J-self-adjoint block operator matrices. In particular, we prove e...
AbstractWe establish sufficient conditions for self-adjointness on a class of unbounded Jacobi opera...
AbstractWe use elementary methods to give a full characterization of the spectral properties of unbo...
AbstractThis paper uses commutator equations to study the absolute continuity of spectral measures a...
AbstractWe consider a class of Jacobi matrices with unbounded coefficients. This class is known to e...
AbstractWe study the spectral properties of Jacobi matrices with the weights satisfying λ2n−1=λ2n=na...
We discuss the proof of and systematic application of Case's sum rules for Jacobi matrices. Of speci...
We study the spectrum of unbounded JJ -self-adjoint block operator matrices. In particular, we prove...
We discuss the proof of and systematic application of Case's sum rules for Jacobi matrices. Of speci...
AbstractIn this article, we relate the properties of elements of a Jacobi matrix from certain class ...
We consider self-adjoint unbounded Jacobi matrices with diagonal \(q_n = b_{n}n\) and off-diagonal ...
AbstractThe paper deals with Jacobi matrices with weights λk given by λk=kα(1+Δk), where α∈(12, 1) a...
We study the spectrum of unbounded J-self-adjoint block operator matrices. In particular, we prove e...
AbstractWe study stability of spectral types for semi-infinite self-adjoint tridiagonal matrices und...
This paper investigates the minimal symmetric operator bounded from below and generated by the real...
We study the spectrum of unbounded J-self-adjoint block operator matrices. In particular, we prove e...
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