On two-point boundary value problems for the Sturm-Liouville operator
arXiv:1512.06584
Abstract
In this paper, we study spectral problems for the Sturm-Liouville operator with arbitrary complexvalued potential q(x) and two-point boundary conditions. All types of mentioned boundary conditions are considered. We ivestigate in detail the completeness property and the basis property of the root function system.
This article is an extended version of a lecture given in International Conference "Modern methods in boundary value problems", Voronezsh, Russia, May 3-9, 2015