Petrov, N. N.; Prokopenko, V. A. On a problem of pursuit of a group of evaders. (Russian) Zbl 0677.90103 Differ. Uravn. 23, No. 4, 725-726 (1987). MSC: 91A24 91A23 91A99 PDFBibTeX XMLCite \textit{N. N. Petrov} and \textit{V. A. Prokopenko}, Differ. Uravn. 23, No. 4, 725--726 (1987; Zbl 0677.90103)
Valikov, K. V. Proximity of the solutions of the Cauchy problem for some second order parabolic equations. (Russian) Zbl 0677.35048 Differ. Uravn. 23, No. 4, 686-696 (1987). Reviewer: J.H.Tian MSC: 35K15 35B40 35R05 35B05 PDFBibTeX XMLCite \textit{K. V. Valikov}, Differ. Uravn. 23, No. 4, 686--696 (1987; Zbl 0677.35048)
Leonov, G. A.; Teschev, V. A. A frequency criterion of stability of systems of differential equations with hysteretic functions. (Russian) Zbl 0655.34046 Differ. Uravn. 23, No. 4, 718-719 (1987). Reviewer: S.G.Zhuravlev MSC: 34D20 PDFBibTeX XMLCite \textit{G. A. Leonov} and \textit{V. A. Teschev}, Differ. Uravn. 23, No. 4, 718--719 (1987; Zbl 0655.34046)
Lutsenko, A. V. Application of the Drazin inversion on linear systems of differential equations. (Russian) Zbl 0653.34001 Differ. Uravn. 23, No. 4, 719-721 (1987). Reviewer: D.Bainov MSC: 34A05 34A30 PDFBibTeX XMLCite \textit{A. V. Lutsenko}, Differ. Uravn. 23, No. 4, 719--721 (1987; Zbl 0653.34001)
Malyshev, Yu. V.; Zakharov, V. P. Lyapunov functions and self-oscillation. (Russian) Zbl 0643.34065 Differ. Uravn. 23, No. 4, 722-724 (1987). Reviewer: Yu.N.Bibikov MSC: 34D20 34C05 34C10 PDFBibTeX XMLCite \textit{Yu. V. Malyshev} and \textit{V. P. Zakharov}, Differ. Uravn. 23, No. 4, 722--724 (1987; Zbl 0643.34065)
Vitrichenko, I. E. On the stability of the trivial solution of a non-autonomous quasilinear equation of second order. (Russian) Zbl 0636.34044 Differ. Uravn. 23, No. 4, 708-712 (1987). Reviewer: Yu.N.Bibikov MSC: 34D20 PDFBibTeX XMLCite \textit{I. E. Vitrichenko}, Differ. Uravn. 23, No. 4, 708--712 (1987; Zbl 0636.34044)
Abdullaev, A. S. On asymptotics of solutions of a nonlinear hyperbolic equation. (Russian) Zbl 0635.35064 Differ. Uravn. 23, No. 4, 706 (1987). Reviewer: A.S.Abdullaev MSC: 35L70 35B30 35B40 PDFBibTeX XMLCite \textit{A. S. Abdullaev}, Differ. Uravn. 23, No. 4, 706 (1987; Zbl 0635.35064)
Berezkina, N. S. On a connection of systems of third order without moving critical points with a sine-Gordon equation. (Russian) Zbl 0633.34032 Differ. Uravn. 23, No. 4, 707-708 (1987). Reviewer: N.S.Berezkina MSC: 34C20 PDFBibTeX XMLCite \textit{N. S. Berezkina}, Differ. Uravn. 23, No. 4, 707--708 (1987; Zbl 0633.34032)
Teptin, A. L. On the sign of the Green function. (Russian) Zbl 0631.34032 Differ. Uravn. 23, No. 4, 670-674 (1987). Reviewer: Gh.Aniculăesei MSC: 34B27 PDFBibTeX XMLCite \textit{A. L. Teptin}, Differ. Uravn. 23, No. 4, 670--674 (1987; Zbl 0631.34032)
Vodichev, A. V. On the observability of systems with delay. (Russian) Zbl 0628.34077 Differ. Uravn. 23, No. 4, 589-597 (1987). Reviewer: M.Tvrdý MSC: 34K35 PDFBibTeX XMLCite \textit{A. V. Vodichev}, Differ. Uravn. 23, No. 4, 589--597 (1987; Zbl 0628.34077)
Gil’, M. I. On dissipativity and existence conditions for limit cycles of differential equations with a leading linear part. (Russian) Zbl 0628.34040 Differ. Uravn. 23, No. 4, 712-714 (1987). Reviewer: A.Klič MSC: 34C11 34A34 34C05 34A25 PDFBibTeX XMLCite \textit{M. I. Gil'}, Differ. Uravn. 23, No. 4, 712--714 (1987; Zbl 0628.34040)
Belikov, S. A. Local boundedness of solutions of a system of ordinary differential equations with respect to a set. (Russian) Zbl 0627.34035 Differ. Uravn. 23, No. 4, 568-577 (1987). Reviewer: V.Komkov MSC: 34C11 PDFBibTeX XMLCite \textit{S. A. Belikov}, Differ. Uravn. 23, No. 4, 568--577 (1987; Zbl 0627.34035)
Knyazev, A. V. Modified gradient methods for spectral problems. (Russian) Zbl 0626.65033 Differ. Uravn. 23, No. 4, 715-717 (1987). Reviewer: J.Šmíd MSC: 65F15 PDFBibTeX XMLCite \textit{A. V. Knyazev}, Differ. Uravn. 23, No. 4, 715--717 (1987; Zbl 0626.65033)
Sidorov, N. A.; Falaleev, M. V. Generalized solution of differential equations with a Fredholm operator at the derivative. (Russian) Zbl 0618.34015 Differ. Uravn. 23, No. 4, 726-728 (1987). MSC: 34A99 PDFBibTeX XMLCite \textit{N. A. Sidorov} and \textit{M. V. Falaleev}, Differ. Uravn. 23, No. 4, 726--728 (1987; Zbl 0618.34015)
Makhorkin, A. V. A linear completely integrable Pfaffian system with a regular singular point. (Russian) Zbl 0618.34005 Differ. Uravn. 23, No. 4, 724-725 (1987). MSC: 34A30 34C05 PDFBibTeX XMLCite \textit{A. V. Makhorkin}, Differ. Uravn. 23, No. 4, 724--725 (1987; Zbl 0618.34005)