Effet Zeeman pour un électron de Dirac
Eigenfunction expansion for a regular fourth order eigenvalue problem with eigenvalue parameter in the boundary conditions.
Eigenstructure of nonselfadjoint complex discrete vector Sturm-Liouville problems.
Eigensystem of an L 2-perturbed harmonic oscillator is an unconditional basis
For any complex valued L p-function b(x), 2 ≤ p < ∞, or L ∞-function with the norm ‖b↾L ∞‖ < 1, the spectrum of a perturbed harmonic oscillator operator L = −d 2/dx 2 + x 2 + b(x) in L 2(ℝ1) is discrete and eventually simple. Its SEAF (system of eigen- and associated functions) is an unconditional basis in L 2(ℝ).
Eigenvalue approximation
Eigenvalue approximations for linear periodic differential equations with a singularity.
Eigenvalue characterization for a class of boundary value problems.
Eigenvalue comparisons for boundary value problems of the discrete beam equation.
Eigenvalue comparisons for differential equations on a measure chain.
Eigenvalue computations for regular matrix Sturm-Liouville problems.
Eigenvalue formulas for the uniform Timoshenko beam: the free-free problem.
Eigenvalue Inequalities for the Dirichlet Problem on Spheres and the Growth of Subharmonic Functions
Eigenvalue problems for -Laplacian functional dynamic equations on time scales.
Eigenvalue problems for systems of nonlinear boundary value problems on time scales.
Ein Äquikonvergenzsatz für eine Klasse von singulären Differentialoperatoren.
Ein Gegenbeispiel zur Stabilität des absolut stetigen Spektrums gewöhnlicher Differentialoperatoren.
Équilibre instable en régime semi-classique
Équilibre instable en régime semi-classique. II. Conditions de Bohr-Sommerfeld
Error analysis of Adomian series solution to a class of nonlinear differential equations.
Essential self-adjointness of symmetric linear relations associated to first order systems
The purpose of this note is to present several criteria for essential self-adjointness. The method is based on ideas due to Shubin. This note is divided into two parts. The first part deals with symmetric first order systems on the line in the most general setting. Such a symmetric first order system of differential equations gives rise naturally to a symmetric linear relation in a Hilbert space. In this case even regularity is nontrivial. We will announce a regularity result and discuss criteria...