Pankrashkin, Konstantin On semiclassical dispersion relations of Harper-like operators. (English) Zbl 1064.81105 J. Phys. A, Math. Gen. 37, No. 48, 11681-11698 (2004). MSC: 81U30 Dispersion theory, dispersion relations arising in quantum theory 81Q20 Semiclassical techniques, including WKB and Maslov methods applied to problems in quantum theory PDF BibTeX XML Cite \textit{K. Pankrashkin}, J. Phys. A, Math. Gen. 37, No. 48, 11681--11698 (2004; Zbl 1064.81105) Full Text: DOI arXiv