UNIQUENESS RESULTS FOR ONE-DIMENSIONAL SCHRODINGER OPERATORS WITH PURELY DISCRETE SPECTRA
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Eckhardt, Jonathan
[1
]
Teschl, Gerald
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Univ Vienna, Fac Math, A-1090 Vienna, Austria
Int Erwin Schrodinger Inst Math Phys, A-1090 Vienna, AustriaUniv Vienna, Fac Math, A-1090 Vienna, Austria
Teschl, Gerald
[1
,2
]
机构:
[1] Univ Vienna, Fac Math, A-1090 Vienna, Austria
[2] Int Erwin Schrodinger Inst Math Phys, A-1090 Vienna, Austria
We provide an abstract framework for singular one-dimensional Schrodinger operators with purely discrete spectra to show when the spectrum plus norming constants determine such an operator completely. As an example we apply our findings to prove new uniqueness results for perturbed quantum mechanical harmonic oscillators. In addition, we also show how to establish a Hochstadt-Lieberman type result for these operators. Our approach is based on the singular Weyl-Titchmarsh-Kodaira theory which is extended to cover the present situation.