A quasiclassical limit of the spectrum of a Schrödinger operator with complex periodic potential. (English. Russian original) Zbl 1387.34116
Sb. Math. 208, No. 10, 1535-1556 (2017); translation from Mat. Sb. 208, No. 10, 126-148 (2017).
Reviewer: Jiři Lipovský (Hradec Kralove)