AbstractWe consider a singular Sturm–Liouville differential expression with an indefinite weight function and we show that the corresponding self-adjoint differential operator in a Krein space locally has the same spectral properties as a definitizable operator
For selfadjoint operators in Krein spaces the notions of spectral points of positive and negative ty...
In this paper, we consider properties of the spectrum of a Sturm-Liouvilleoperator on time scales. W...
It is shown that the finiteness of eigenvalues in a spectral gap of a definitizable or locally defin...
We consider a singular Sturm-Liouville differential expression with an indefinite weight function an...
We consider a singular Sturm-Liouville expression with the indefinite weight sgn x. To this expressi...
AbstractIn this paper we develop a perturbation approach to investigate spectral problems for singul...
Abstract In this paper we develop a perturbation approach to investigate spectral problems for singu...
Ordinary and partial differential operators with an indefinite weight function can be viewed as boun...
Spectral properties of the equation l (f ) - λrf = 0 with an indefinite weight function r are studi...
Spectral properties of singular Sturm-Liouville operators of the form A = sgn ()(− d2 dx2 + V ) with...
In dieser Dissertation betrachten wir Differentialausdr"ucke der Form %\begin{equation}\label{ell} $...
We consider a class of boundary value problems for Sturm-Liouville operators with an indefinite weig...
AbstractGiven a self-adjoint operator A:D(A)⊆H→H and a continuous linear operator τ:D(A)→X with Rang...
We study a Sturm-Liouville expression with indefinite weight of the form sgn (−d^2/dx^2+V ) on \math...
We consider a class of boundary value problems for Sturm–Liouville operators with indefinite weight ...
For selfadjoint operators in Krein spaces the notions of spectral points of positive and negative ty...
In this paper, we consider properties of the spectrum of a Sturm-Liouvilleoperator on time scales. W...
It is shown that the finiteness of eigenvalues in a spectral gap of a definitizable or locally defin...
We consider a singular Sturm-Liouville differential expression with an indefinite weight function an...
We consider a singular Sturm-Liouville expression with the indefinite weight sgn x. To this expressi...
AbstractIn this paper we develop a perturbation approach to investigate spectral problems for singul...
Abstract In this paper we develop a perturbation approach to investigate spectral problems for singu...
Ordinary and partial differential operators with an indefinite weight function can be viewed as boun...
Spectral properties of the equation l (f ) - λrf = 0 with an indefinite weight function r are studi...
Spectral properties of singular Sturm-Liouville operators of the form A = sgn ()(− d2 dx2 + V ) with...
In dieser Dissertation betrachten wir Differentialausdr"ucke der Form %\begin{equation}\label{ell} $...
We consider a class of boundary value problems for Sturm-Liouville operators with an indefinite weig...
AbstractGiven a self-adjoint operator A:D(A)⊆H→H and a continuous linear operator τ:D(A)→X with Rang...
We study a Sturm-Liouville expression with indefinite weight of the form sgn (−d^2/dx^2+V ) on \math...
We consider a class of boundary value problems for Sturm–Liouville operators with indefinite weight ...
For selfadjoint operators in Krein spaces the notions of spectral points of positive and negative ty...
In this paper, we consider properties of the spectrum of a Sturm-Liouvilleoperator on time scales. W...
It is shown that the finiteness of eigenvalues in a spectral gap of a definitizable or locally defin...