Kondrat’ev, V. A. Sufficient conditions for non-oscillatory or oscillatory nature of solutions of equation \(y\prime\prime + p (x) y = 0\). (Russian) Zbl 0088.06104 Dokl. Akad. Nauk SSSR 113, 742-745 (1957). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 7 Documents Keywords:ordinary differential equations PDFBibTeX XMLCite \textit{V. A. Kondrat'ev}, Dokl. Akad. Nauk SSSR 113, 742--745 (1957; Zbl 0088.06104)