The main result of this work is a parametric description of the spectral surfaces of a class of periodic 5-diagonal matrices, related to the strong moment problem. This class is a self-adjoint twin of the class of CMV matrices. Jointly they form the simplest possible classes of 5-diagonal matrices.
Cite this article
Ionela Moale, Peter Yuditskii, Spectral sets of periodic matrices related to the strong moment problem. J. Spectr. Theory 4 (2014), no. 1, pp. 23–52DOI 10.4171/JST/60