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arXiv 1004.4175math.SPmath-phmath.MP
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扰动球面Schroedinger算子的逆本征值问题

Inverse Eigenvalue Problems for Perturbed Spherical Schroedinger Operators

Aleksey Kostenko, Alexander Sakhnovich, Gerald Teschl

摘要:

在扰动$q(x)$满足$x q(x) \in L^1(0,1)$的条件下,研究了扰动球面薛定谔算子的本征值.我们表明,平方根的特征值的平方根的未扰动的特征值的衰减误差取决于$q(x)$附近的$x=0$的行为。此外,我们提供了一组光谱数据,唯一地确定$q(x)$。

英文摘要:

We investigate the eigenvalues of perturbed spherical Schrödinger operators under the assumption that the perturbation $q(x)$ satisfies $x q(x) \in L^1(0,1)$. We show that the square roots of eigenvalues are given by the square roots of the unperturbed eigenvalues up to an decaying error depending on the behavior of $q(x)$ near $x=0$. Furthermore, we provide sets of spectral data which uniquely determine $q(x)$.

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