Marchenko, V. A.; Ostrovskii, I. V. A characterization of the spectrum of Hill’s operator. (English) Zbl 0343.34016 Math. USSR, Sb. 26(1975), 493-554 (1977). Translation from Mat. Sb., N. Ser. 97(139), 540–606 (1975; Zbl 0327.34021). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 ReviewsCited in 41 Documents MathOverflow Questions: A holomorphic function sending integers (and only integers) to \(\{0,1,2,3\}\) MSC: 34L40 Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) 34B30 Special ordinary differential equations (Mathieu, Hill, Bessel, etc.) 47E05 General theory of ordinary differential operators 30D15 Special classes of entire functions of one complex variable and growth estimates 30C20 Conformal mappings of special domains 35Q99 Partial differential equations of mathematical physics and other areas of application Citations:Zbl 0327.34021 PDF BibTeX XML Cite \textit{V. A. Marchenko} and \textit{I. V. Ostrovskii}, Math. USSR, Sb. 26, 493--554 (1977; Zbl 0343.34016) Full Text: DOI OpenURL