Singular Weyl-Titchmarsh-Kodaira Theory for Jacobi Operators
  We develop singular Weyl-Titchmarsh-Kodaira theory for Jacobi operators. In particular, we establish existence of a spectral transformation as well as local Borg-Marchenko and Hochstadt-Liebermann type uniqueness results. 
Jonathan Eckhardt and Gerald Teschl
math.SP math-ph math.MP