Gil’, M. I. Estimates of solutions of quasilinear systems of parabolic type. (Russian) Zbl 0706.35064 Differ. Uravn. 25, No. 4, 723-726 (1989). Reviewer: J.E.Bouillet MSC: 35K55 35B45 35G10 35K25 PDF BibTeX XML Cite \textit{M. I. Gil'}, Differ. Uravn. 25, No. 4, 723--726 (1989; Zbl 0706.35064) OpenURL
Bogomolova, E. P. Necessary conditions for the basis property in the direct sum of Sobolev spaces. (Russian) Zbl 0697.34046 Differ. Uravn. 25, No. 4, 722-723 (1989). Reviewer: J.Appell MSC: 34C99 46B15 PDF BibTeX XML Cite \textit{E. P. Bogomolova}, Differ. Uravn. 25, No. 4, 722--723 (1989; Zbl 0697.34046) OpenURL
Kasumov, T. B. Fractional powers of quasidifferential operators and theorems on basis property. (Russian) Zbl 0694.34014 Differ. Uravn. 25, No. 4, 729-731 (1989). Reviewer: V.G.Angelov MSC: 34B05 PDF BibTeX XML Cite \textit{T. B. Kasumov}, Differ. Uravn. 25, No. 4, 729--731 (1989; Zbl 0694.34014) OpenURL
Kalitin, B. S. On the Florio-Seibert problem. (Russian) Zbl 0683.54042 Differ. Uravn. 25, No. 4, 727-729 (1989). Reviewer: A.Pelczar MSC: 54H20 37C75 PDF BibTeX XML Cite \textit{B. S. Kalitin}, Differ. Uravn. 25, No. 4, 727--729 (1989; Zbl 0683.54042) OpenURL
Barabanov, N. E. New frequency criteria for absolute stability and instability of systems of automatic control with time-dependent nonlinearity. (Russian) Zbl 0678.34062 Differ. Uravn. 25, No. 4, 555-563 (1989). Reviewer: N.E.Barabanov MSC: 34D99 34H05 34A34 PDF BibTeX XML Cite \textit{N. E. Barabanov}, Differ. Uravn. 25, No. 4, 555--563 (1989; Zbl 0678.34062) OpenURL