Morozov, N. P. Periodic solutions of the equation \(\ddot x+\lambda f(ax+b\dot x)\dot x+x=0\). (Russian) Zbl 0625.34045 Differ. Uravn. 22, No. 5, 905-907 (1986). Reviewer: S.G.Hristova MSC: 34C25 PDFBibTeX XMLCite \textit{N. P. Morozov}, Differ. Uravn. 22, No. 5, 905--907 (1986; Zbl 0625.34045)
Zhemukhov, Kh. K. Darboux problem for a degenerate charged second order integro- differential equation. (Russian) Zbl 0616.45015 Differ. Uravn. 22, No. 12, 2174-2176 (1986). Reviewer: G.Cimmino MSC: 45K05 PDFBibTeX XMLCite \textit{Kh. K. Zhemukhov}, Differ. Uravn. 22, No. 12, 2174--2176 (1986; Zbl 0616.45015)
Kudryavtsev, D. L. On the monodromy group of a second order linear differential equation. (Russian) Zbl 0615.34003 Differ. Uravn. 22, No. 6, 1068-1070 (1986). Reviewer: V.A.Tkačenko MSC: 34M35 34A30 PDFBibTeX XMLCite \textit{D. L. Kudryavtsev}, Differ. Uravn. 22, No. 6, 1068--1070 (1986; Zbl 0615.34003)
Ponomarev, V. D. On the structure of some set of solutions of a second order ordinary differential equation. (Russian) Zbl 0614.34005 Differ. Uravn. 22, No. 6, 1089-1090 (1986). Reviewer: I.Foltyńska MSC: 34A12 34C99 PDFBibTeX XMLCite \textit{V. D. Ponomarev}, Differ. Uravn. 22, No. 6, 1089--1090 (1986; Zbl 0614.34005)
Gaponenko, Yu. L. On the question of boundedness of the solution of a second order linear equation. (Russian) Zbl 0613.34027 Differ. Uravn. 22, No. 5, 890-891 (1986). Reviewer: P.Moson MSC: 34C11 PDFBibTeX XMLCite \textit{Yu. L. Gaponenko}, Differ. Uravn. 22, No. 5, 890--891 (1986; Zbl 0613.34027)
Shekhter, B. L. On a boundary value problem of periodic type for a linear second order ordinary differential equation. (Russian) Zbl 0607.34016 Differ. Uravn. 22, No. 9, 1551-1556 (1986). Reviewer: A.Haimovici MSC: 34B15 34A30 PDFBibTeX XMLCite \textit{B. L. Shekhter}, Differ. Uravn. 22, No. 9, 1551--1556 (1986; Zbl 0607.34016)
Mel’nikova, I. V.; Frejberg, A. Yu. Regularization of an ill-posed Cauchy problem for a second order equation in Banach space. (Russian) Zbl 0607.34002 Differ. Uravn. 22, No. 8, 1332-1338 (1986). Reviewer: A.Haimovici MSC: 34A12 47E05 PDFBibTeX XMLCite \textit{I. V. Mel'nikova} and \textit{A. Yu. Frejberg}, Differ. Uravn. 22, No. 8, 1332--1338 (1986; Zbl 0607.34002)