Geodesic
On Generalized Bohr--Sommerfeld Quantization Rules for Operators with PT Symmetry
Matematičeskie zametki, Tome 99 (2016) no. 5, pp. 673-683.

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We give Bohr–Sommerfeld rules corresponding to quasi-eigenvalues in the pseudospectrum for a one-dimensional $h$-pseudodifferential operator verifying PT symmetry.
Keywords: Bohr–Sommerfeld rule, $h$-pseudodifferential operator, PT symmetry
Mots-clés : principal symbol, sub-principal symbol, Weyl quantization, quasi-mode. 
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A. Ifa; N. M'Hadbi; M. Rouleux. On Generalized Bohr--Sommerfeld Quantization Rules for Operators with PT Symmetry. Matematičeskie zametki, Tome 99 (2016) no. 5, pp. 673-683. http://geodesic.mathdoc.fr/item/MZM_2016_99_5_a3/

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