AbstractAn eigenfunction expansion theorem is proved under certain assumptions about a nonselfadjoint operator A + V, where A is selfadjoint, not necessarily bounded below, and the eigenfunction expansion theorem for A is known
AbstractNonlinear equations arising in the spectral theory of self-adjoint operator functions and re...
summary:Two simple methods for approximate determination of eigenvalues and eigenvectors of linear s...
We give a characterisation of the spectral properties of linear differential operators with constant...
AbstractAn eigenfunction expansion theorem is proved under certain assumptions about a nonselfadjoin...
AbstractThe self-adjoint subspace extensions of a possibly nondensely defined symmetric ordinary dif...
AbstractFor a nonspectral differential operator L determined by −D2, sufficient conditions are estab...
AbstractThe self-adjoint subspace extensions of a possibly nondensely defined symmetric ordinary dif...
Introduction: Many of the properties of the ordinary Fourier series expansion of a given function ar...
AbstractWe develop spectral theorems for a certain class of (non-) selfadjoint differential operator...
In this paper, we investigate the nonselfadjoint (dissipative) boundary value transmission problems...
AbstractWe prove quantitative bounds on the eigenvalues of non-selfadjoint unbounded operators obtai...
summary:Two simple methods for approximate determination of eigenvalues and eigenvectors of linear s...
AbstractThe generalized eigenfunction expansion theory of Zemanian for a differential operator with ...
In this paper, we explore a certain class of Non-selfadjoint operators acting on a complex separable...
We consider the form of eigenfunction expansions associated with the time-independent Schrödinger op...
AbstractNonlinear equations arising in the spectral theory of self-adjoint operator functions and re...
summary:Two simple methods for approximate determination of eigenvalues and eigenvectors of linear s...
We give a characterisation of the spectral properties of linear differential operators with constant...
AbstractAn eigenfunction expansion theorem is proved under certain assumptions about a nonselfadjoin...
AbstractThe self-adjoint subspace extensions of a possibly nondensely defined symmetric ordinary dif...
AbstractFor a nonspectral differential operator L determined by −D2, sufficient conditions are estab...
AbstractThe self-adjoint subspace extensions of a possibly nondensely defined symmetric ordinary dif...
Introduction: Many of the properties of the ordinary Fourier series expansion of a given function ar...
AbstractWe develop spectral theorems for a certain class of (non-) selfadjoint differential operator...
In this paper, we investigate the nonselfadjoint (dissipative) boundary value transmission problems...
AbstractWe prove quantitative bounds on the eigenvalues of non-selfadjoint unbounded operators obtai...
summary:Two simple methods for approximate determination of eigenvalues and eigenvectors of linear s...
AbstractThe generalized eigenfunction expansion theory of Zemanian for a differential operator with ...
In this paper, we explore a certain class of Non-selfadjoint operators acting on a complex separable...
We consider the form of eigenfunction expansions associated with the time-independent Schrödinger op...
AbstractNonlinear equations arising in the spectral theory of self-adjoint operator functions and re...
summary:Two simple methods for approximate determination of eigenvalues and eigenvectors of linear s...
We give a characterisation of the spectral properties of linear differential operators with constant...
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