Race, D.; Zettl, A. Nullspaces, representations and factorizations of quasi-differential expressions. (English) Zbl 0831.34007 Differ. Integral Equ. 6, No. 4, 949-960 (1993). MSC: 34A30 34B05 34L99 PDFBibTeX XMLCite \textit{D. Race} and \textit{A. Zettl}, Differ. Integral Equ. 6, No. 4, 949--960 (1993; Zbl 0831.34007)
Seifert, George Certain systems with piecewise constant feedback controls with a time delay. (English) Zbl 0787.93038 Differ. Integral Equ. 6, No. 4, 937-947 (1993). Reviewer: J.H.Swart (Durban) MSC: 93B52 34K20 92D99 PDFBibTeX XMLCite \textit{G. Seifert}, Differ. Integral Equ. 6, No. 4, 937--947 (1993; Zbl 0787.93038)
Tucsnak, Marius Boundary stabilization for the stretched string equation. (English) Zbl 0794.93016 Differ. Integral Equ. 6, No. 4, 925-935 (1993). MSC: 93B05 93D99 PDFBibTeX XMLCite \textit{M. Tucsnak}, Differ. Integral Equ. 6, No. 4, 925--935 (1993; Zbl 0794.93016)
Bortoletto, Stefania The Bellman equation for constrained deterministic optimal control problems. (English) Zbl 0798.35031 Differ. Integral Equ. 6, No. 4, 905-924 (1993). Reviewer: M.Brokate (Kiel) MSC: 35F30 49L25 PDFBibTeX XMLCite \textit{S. Bortoletto}, Differ. Integral Equ. 6, No. 4, 905--924 (1993; Zbl 0798.35031)
Lin, Chin-Yuan Well-posedness and asymptotics of solutions for a class of wave equations with a nonlinear boundary stabilizer. (English) Zbl 0781.93081 Differ. Integral Equ. 6, No. 4, 899-904 (1993). MSC: 93D15 93D20 93C20 74H45 PDFBibTeX XMLCite \textit{C.-Y. Lin}, Differ. Integral Equ. 6, No. 4, 899--904 (1993; Zbl 0781.93081)
Cao, Yulin; Gard, Thomas C. Uniform persistence for population models with time delay using multiple Lyapunov functions. (English) Zbl 0780.92019 Differ. Integral Equ. 6, No. 4, 883-898 (1993). Reviewer: R.Redlinger (Karlsruhe) MSC: 92D25 34K25 PDFBibTeX XMLCite \textit{Y. Cao} and \textit{T. C. Gard}, Differ. Integral Equ. 6, No. 4, 883--898 (1993; Zbl 0780.92019)
Schwabik, Štefan The Perron integral in ordinary differential equations. (English) Zbl 0784.34006 Differ. Integral Equ. 6, No. 4, 863-882 (1993). Reviewer: L.Janos (Los Angeles) MSC: 34A12 34A34 26A39 PDFBibTeX XMLCite \textit{Š. Schwabik}, Differ. Integral Equ. 6, No. 4, 863--882 (1993; Zbl 0784.34006)
Marchi, Maria Vittoria; Pacella, Filomena On the existence of nodal solutions of the equation \(-\Delta u = | u | ^{2^*-2}u\) with Dirichlet boundary conditions. (English) Zbl 0782.35022 Differ. Integral Equ. 6, No. 4, 849-862 (1993). MSC: 35J65 35A05 PDFBibTeX XMLCite \textit{M. V. Marchi} and \textit{F. Pacella}, Differ. Integral Equ. 6, No. 4, 849--862 (1993; Zbl 0782.35022)
Hatvani, László; Totik, Vilmos Asymptotic stability of the equilibrium of the damped oscillator. (English) Zbl 0777.34036 Differ. Integral Equ. 6, No. 4, 835-848 (1993). MSC: 34D20 34D05 PDFBibTeX XMLCite \textit{L. Hatvani} and \textit{V. Totik}, Differ. Integral Equ. 6, No. 4, 835--848 (1993; Zbl 0777.34036)
Chen, Chao-Nien Uniqueness of solutions of some second order differential equations. (English) Zbl 0777.34021 Differ. Integral Equ. 6, No. 4, 825-834 (1993). MSC: 34C10 34A12 34B15 PDFBibTeX XMLCite \textit{C.-N. Chen}, Differ. Integral Equ. 6, No. 4, 825--834 (1993; Zbl 0777.34021)
Grossi, Massimo Multiplicity results for semilinear elliptic equations with lack of compactness. (English) Zbl 0792.35053 Differ. Integral Equ. 6, No. 4, 807-823 (1993). Reviewer: R.Precup (Cluj-Napoca) MSC: 35J65 PDFBibTeX XMLCite \textit{M. Grossi}, Differ. Integral Equ. 6, No. 4, 807--823 (1993; Zbl 0792.35053)
Qian, Dingbian; You, Jiangong Periodic solutions of forced second order equations with oscillatory time map. (English) Zbl 0782.34049 Differ. Integral Equ. 6, No. 4, 793-806 (1993). Reviewer: Ding Tongren (Beijing) MSC: 34C25 PDFBibTeX XMLCite \textit{D. Qian} and \textit{J. You}, Differ. Integral Equ. 6, No. 4, 793--806 (1993; Zbl 0782.34049)
Visintin, A. Accretivity results for nonlinear systems. (English) Zbl 0799.47034 Differ. Integral Equ. 6, No. 4, 773-792 (1993). MSC: 47H06 47H20 PDFBibTeX XMLCite \textit{A. Visintin}, Differ. Integral Equ. 6, No. 4, 773--792 (1993; Zbl 0799.47034)
Chiappinelli, Raffaele; de Figueiredo, Djairo G. Bifurcation from infinity and multiple solutions for an elliptic system. (English) Zbl 0784.35008 Differ. Integral Equ. 6, No. 4, 757-771 (1993). MSC: 35B32 35B45 35J55 35J65 35K57 PDFBibTeX XMLCite \textit{R. Chiappinelli} and \textit{D. G. de Figueiredo}, Differ. Integral Equ. 6, No. 4, 757--771 (1993; Zbl 0784.35008)
Lupo, Daniela; Vanderbauwhede, André Cusp points and pitchfork interactions in equivariant bifurcation problems. (English) Zbl 0789.58059 Differ. Integral Equ. 6, No. 4, 721-756 (1993). Reviewer: B.F.Gray (Sydney) MSC: 37G99 35B32 PDFBibTeX XMLCite \textit{D. Lupo} and \textit{A. Vanderbauwhede}, Differ. Integral Equ. 6, No. 4, 721--756 (1993; Zbl 0789.58059)