The inverse problem for perturbed harmonic oscillator on the half-line with Dirichlet boundary conditions

Details The inverse problem for perturbed harmonic oscillator on the half-line with Dirichlet boundary conditions The inverse problem for perturbed harmonic oscillator on the half-line with Dirichlet boundary conditions

2006-07-31

arxiv.org/abs/math/0607813v1

Mathematics

Spectral Theory

Scientific paper

10.1007/s00023-007-0330-z

We consider the perturbed harmonic oscillator $T_D\psi=-\psi''+x^2\psi+q(x)\psi$, $\psi(0)=0$, in $L^2(\R_+)$, where $q\in\bH_+=\{q', xq\in L^2(\R_+)\}$ is a real-valued potential. We prove that the mapping $q\mapsto{\rm spectral data}={\rm \{eigenvalues of\}T_D{\rm \}}\oplus{\rm \{norming constants\}}$ is one-to-one and onto. The complete characterization of the set of spectral data which corresponds to $q\in\bH_+$ is given.

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