Abstract
We give Bohr–Sommerfeld rules corresponding to quasi-eigenvalues in the pseudospectrum for a one-dimensional h-pseudodifferential operator verifying PT symmetry.
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Original Russian Text © A. Ifa, N. M’hadhbi, M. Rouleux, 2016, published in Matematicheskie Zametki, 2016, Vol. 99, No. 5, pp. 673–683.
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Ifa, A., M’hadhbi, N. & Rouleux, M. On generalized Bohr–Sommerfeld quantization rules for operators with PT symmetry. Math Notes 99, 676–684 (2016). https://doi.org/10.1134/S0001434616050060
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DOI: https://doi.org/10.1134/S0001434616050060