Sum rules for Jacobi matrices and their applications to spectral theory

Type: Article

Publication Date: 2003-07-01

Citations: 288

DOI: https://doi.org/10.4007/annals.2003.158.253

Abstract

We discuss the proof of and systematic application of Case's sum rules for Jacobi matrices.Of special interest is a linear combination of two of his sum rules which has strictly positive terms.Among our results are a complete classification of the spectral measures of all Jacobi matrices J for which J -J 0 is Hilbert-Schmidt, and a proof of Nevai's conjecture that the Szegő condition holds if J -J 0 is trace class.

Locations

  • arXiv (Cornell University) - View - PDF
  • CaltechAUTHORS (California Institute of Technology) - View - PDF
  • Annals of Mathematics - View - PDF

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