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New non-perturbative findings reveal exponential corrections in the eigenvalues of spheroidal equations, indicating significant implications for quantum periods.
New non-perturbative results on the eigenvalues of the spheroidal equation are presented. The results, found using an all orders WKB analysis, include a perturbative/non-perturbative (P/NP) relation as well as the first exponential correction to the perturbative series which is valid in certain regions of parameters. The quantum periods are also computed.
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Max Meynig (2025) studied this question.
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