An Eigenfunction Expansion for a Quadratic Pencil of a Schrödinger Operator with Spectral Singularities

ON THE COMPLETENESS OF THE EIGENFUNCTIONS OF SOME CLASSES OF NON-SELFADJOINT LINEAR OPERATORS

M V Keldysh · Russian Mathematical Surveys · 1971 · 286 citations

Natural Sciences, Architectural Representation, Quantum Mechanics +11

Some non‐selfadjoint operators

J. T. Schwartz · Communications on Pure and Applied Mathematics · 1960 · 162 citations

The inverses-wave scattering problem for a class of potentials depending on energy

M. Jaulent, C. Jean · Communications in Mathematical Physics · 1972 · 142 citations

Natural Sciences, Mathematics, Physics +12

ON SEPARATION CONDITIONS FOR THE SPECTRAL COMPONENTS OF A DISSIPATIVE OPERATOR

B. S. Pavlov · Mathematics of the USSR-Izvestiya · 1975 · 61 citations

Natural Sciences, Mathematics, Differential Equations +14

Spectrum and Spectral Singularities of a Quadratic Pencil of a Schrödinger Operator with a General Boundary Condition

Allan M. Krall, Elgiz Bairamov, Öner Çakar · Journal of Differential Equations · 1999 · 53 citations

Natural Sciences, Physics, Quantum Mechanics +15