Sakhnovich, L. A. On the spectrum of the radial Schrödinger equation in the neighborhood of zeros. (English. Russian original) Zbl 0189.38105 Am. Math. Soc., Transl., II. Ser. 61, 183-206 (1967); translation from Mat. Sb., n. Ser. 67(109), 221-243 (1965). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:ordinary differential equations PDFBibTeX XMLCite \textit{L. A. Sakhnovich}, Transl., Ser. 2, Am. Math. Soc. 61, 183--206 (1965; Zbl 0189.38105); translation from Mat. Sb., n. Ser. 67(109), 221--243 (1965) Full Text: DOI