Buslaev, V. S.; Fedotov, A. A. The Harper equation: Monodromization without quasiclassics. (English. Russian original) Zbl 0866.34071 St. Petersbg. Math. J. 8, No. 2, 231-254 (1997); translation from Algebra Anal. 8, No. 2, 65-97 (1996). See the review in Zbl 0849.34066. Cited in 2 Documents MSC: 34L40 Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) 81Q05 Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics 34E20 Singular perturbations, turning point theory, WKB methods for ordinary differential equations Keywords:Harper equation; spectrum; monodromization Citations:Zbl 0849.34066 PDF BibTeX XML Cite \textit{V. S. Buslaev} and \textit{A. A. Fedotov}, St. Petersbg. Math. J. 8, No. 2, 65--97 (1996; Zbl 0866.34071); translation from Algebra Anal. 8, No. 2, 65--97 (1996) OpenURL