Frolov, Yu. N. Über eine Methode zur Lösung einer Operatorgleichung unendlicher Ordnung. (Russian) Zbl 0258.34010 Mat. Sb., N. Ser. 89(131), 461-474 (1972). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 34A25 Analytical theory of ordinary differential equations: series, transformations, transforms, operational calculus, etc. 47E05 General theory of ordinary differential operators 34A35 Ordinary differential equations of infinite order 34A45 Theoretical approximation of solutions to ordinary differential equations PDFBibTeX XMLCite \textit{Yu. N. Frolov}, Mat. Sb., Nov. Ser. 89(131), 461--474 (1972; Zbl 0258.34010)