Essential Spectral Singularities and the Spectral Expansion for the Hill Operator

Abstract

In this paper we investigate the spectral expansion for the one-dimensional Schrodinger operator with a periodic complex-valued potential. For this we consider in detail the spectral singularities and introduce new concepts as essential spectral singularities and singular quasimomenta.

References in corpus (1)

• On the Spectral Singularities and Spectrality of the Hill Operator