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Spectral analysis of the complex cubic oscillator. (English) Zbl 1044.81555


MSC:

81Q10 Selfadjoint operator theory in quantum theory, including spectral analysis
34E20 Singular perturbations, turning point theory, WKB methods for ordinary differential equations
81Q20 Semiclassical techniques, including WKB and Maslov methods applied to problems in quantum theory
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