%0 Journal Article
%T Essential Spectral Singularities and the Spectral Expansion for the Hill Operator
%A O. A. Veliev
%J Mathematics
%D 2015
%I arXiv
%X 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.
%U http://arxiv.org/abs/1512.04473v2