05-321 Fr d ric Serier (LMJL)

Inverse spectral problem for radial Schr\"{o}dinger operator on [0, 1] (445K, PDF) Sep 14, 05

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Abstract. For a class of singular Sturm-Liouville equations on the unit interval with explicit singularity $a(a + 1)/x^2, a \in \mathbb{N}$, we consider an inverse spectral problem. Our goal is the global parametrization of potentials by spectral data noted by $\lambda^a$, and some norming constants noted by $\kappa^a$. For $a = 0$ and $a=1$, $\lambda^a\times \kappa^a$ was already known to be a global coordinate system on $\lr$. With the help of transformation operators, we extend this result to any non-negative integer $a$ and give a description of isospectral sets.

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