Found 136 Documents (Results 1–100)
Soliton solution of three differential-difference equations in Wronskian form. (English) Zbl 1168.34365
On the boundedness and stability of solutions of some nonlinear second order functional-differential equations. (Russian. English summary) Zbl 0623.34068
On non-zero forced periodic oscillations. (Russian) Zbl 0612.34065
Dynamics of non-homogeneous systems, Mater. Semin., Moskva 1983, 244-247 (1983).
A boundary value problem with parameters for differential equations of superneutral type. (Russian) Zbl 0605.34054
Reviewer: J.Appell
On pointwise completeness of nonautonomous linear delay differential equations. (English) Zbl 0603.34068
Reviewer: J.M.Cushing
The approximate solution of a problem with distributed lag. (Russian) Zbl 0603.34061
Boundary value problems, Interuniv. Collect. sci. Works, Perm’ 1983, 134-136 (1983).
Reviewer: K.Barckow
Reducible functional-differential equations. (Russian) Zbl 0596.34043
Boundary value problems, Interuniv. Collect. sci. Works, Perm’ 1983, 3-6 (1983).
Reviewer: G.Stiller
On nonlinear difference approximations to nonlinear functional differential equations. (English) Zbl 0596.34042
Reviewer: V.H.Velev
Approximating control problems for dynamical systems described by functional-differential equations of neutral type. (English) Zbl 0593.34069
Reviewer: N.H.Pavel
Oscillation of the solutions of Barbashin-type functional-integro-differential equations of the first order. (Russian) Zbl 0582.34043
Issled. Integro-Differ. Uravn. 16, 76-89 (1983).
Reviewer: Günter Stiller (Hannover)
Existence of periodic solutions of an \(n\)th order nonlinear differential equation with retardation. (Russian) Zbl 0575.34051
Differential equations and some of their applications, Interuniv. Collect., Tyumen’ 1983, 9-15 (1983).
Reviewer: O.Dumbrajs
On implicit functional-differential equations in Banach space. (Russian) Zbl 0569.34058
Dynamics of nonlinear systems, Work Collect., Novosibirsk 1983, 151-164 (1983).
Reviewer: T.Dłotko
On the probability density functions and the oscillations. (English) Zbl 0568.34054
Reviewer: P.K.Wong
Remarks on observer design for a class of linear hereditary systems with disturbances. (English) Zbl 0567.34066
Functional-differential systems and related topics III, Proc. 3rd int. Conf., Błażejewko/Pol. 1983, 215-221 (1983).
Reviewer: V.Sree Hari Rao
MSC:
34K99
Positive almost periodic solutions of delay logistic equations. (English) Zbl 0566.45013
Reviewer: J.M.Cushing
Quasilinearization and the identification problem. (English) Zbl 0565.93015
Series in Modern Applied Mathematics, 2. Singapore: World Scientific. XV, 207 p. hbk: $ 26.00; pbk: $ 14.00 (1983).
Reviewer: R.H.W.Hoppe
Closedness of the image of the structural operator for a delay system. (English) Zbl 0565.34061
Functional-differential systems and related topics III, Proc. 3rd int. Conf., Błażejewko/Pol. 1983, 11-18 (1983).
Reviewer: J.O.C.Ezeilo
On Poincaré’s translation operator for ordinary equations with retards. (English) Zbl 0564.34069
Reviewer: St.Fenyö
Morse decompositions and global continuation of periodic solutions for singularly perturbed delay equations. (English) Zbl 0562.34060
Systems of nonlinear partial differential equations, Proc. NATO Adv. Study Inst., Oxford/U.K. 1982, NATO ASI Ser., Ser. C 111, 351-365 (1983).
Reviewer: R.G.Koplatadze
Nonresonance in functional differential equations with small time lag. (English) Zbl 0561.34057
Functional-differential systems and related topics III, Proc. 3rd int. Conf., Błażejewko/Pol. 1983, 65-78 (1983).
Reviewer: B.H.Stephan
Asymptotic almost periodicity of the solutions of some retarded differential equations. (English) Zbl 0559.34070
Functional-differential systems and related topics III, Proc. 3rd int. Conf., Błażejewko/Pol. 1983, 45-55 (1983).
Reviewer: J.Ohriska
Maximum principle for nonlinear functional differential operators of elliptic type. (Italian) Zbl 0557.35047
Conf. Semin. Mat. Univ. Bari 188, 7 p. (1983).
Reviewer: M.Merigot
Stabilité des solutions d’un système d’équations différentielles fonctionelles du type elliptique. (Stability of solutions of a system of functional-differential equations of elliptic type). (French) Zbl 0557.35044
Conf. Semin. Mat. Univ. Bari 187, 8 p. (1983).
Reviewer: M.Merigot
Convergence of the method of trigonometric collocation for differential equations of neutral type with a deviating argument. (Russian. English summary) Zbl 0556.34073
Reviewer: R.R.Akhmerov
Justification of partially-multiplicative averaging for a class of functional-differential equations with impulses. (English) Zbl 0555.34058
Reviewer: M.Sree
On the existence of an invariant surface for a system of differential equations with deviating argument. (English) Zbl 0554.34045
Reviewer: H.Haruki
Construction of periodic solutions for the Mathieu equation with damping and delaying argument. (Bulgarian. English, Russian summaries) Zbl 0553.34049
Determination of characteristic indices of the Mathieu equation with damping both with and without lag in the argument. (Bulgarian. English, Russian summaries) Zbl 0553.34048
Properties of nonoscillatory solutions of higher order differential equations with deviating argument. (Bulgarian. English, Russian summaries) Zbl 0553.34046
Justification of partially-multiplicative averaging for a class of functional-differential equations with impulses. (English) Zbl 0552.34065
Singularly perturbed delay-differential equations. (English) Zbl 0551.34036
Coupled nonlinear oscillators, Proc. Workshop, Los Alamos 1981, North- Holland Math. Stud. 80, 7-12 (1983).
Reviewer: H.Haruki
Investigation of oscillatory conditions in systems with a lag in the case of passage through resonances. (Russian) Zbl 0549.34064
Approximate methods in the investigation of nonlinear oscillations, Collect. sci. Works, Kiev 1983, 106-111 (1983).
Reviewer: R.R.Akhmerov
On the solvability of functional and functional-differential equations in the space of functions bounded on the axis. (Russian) Zbl 0548.34070
Approximate and qualitative methods of the theory of functional- differential equations, Collect. sci. Works, Kiev 1983, 83-88 (1983).
Reviewer: M.M.Konstantinov
Nonlinear problems in ecology and resource management. (English) Zbl 0547.92018
Chaotic behaviour of deterministic systems, Les Houches/Fr. 1981, Sess. 36, 513-564 (1983).
Implicit function theorem and solvability of equations of neutral type. (Russian) Zbl 0547.34057
Reviewer: S.Stanek
Asymptotic behaviour of bounded solutions of systems of differential- difference equations. (Russian) Zbl 0546.34060
Approximate and qualitative methods of the theory of functional- differential equations, Collect. sci. Works, Kiev 1983, 88-97 (1983).
Reviewer: A.Klič
Oscillation theorems for nth-order delay differential equations. (English) Zbl 0546.34055
Reviewer: B.A.Stephan
Convergence of the method of trigonometric collocation for nonlinear periodic systems of differential equations with retarded argument. (English. Russian original) Zbl 0546.34054
Ukr. Math. J. 35, 692-696 (1983); translation from Ukr. Mat. Zh. 35, No. 6, 788-792 (1983).
Reviewer: A.Halanay
MSC:
34K99
65Q05
On the construction of periodic solutions to differential equations with delay. (Russian. English summary) Zbl 0544.34062
Reviewer: V.V.Obuhovskij
On the asymptotic behavior of solutions of higher order differential equations with deviations of the argument of mixed type. (Russian) Zbl 0543.34063
Approximate and qualitative methods of the theory of functional- differential equations, Collect. sci. Works, Kiev 1983, 13-34 (1983).
Reviewer: T.Dłotko
Universal order and universal rate of bifurcations for solutions of differential-difference equations. (Russian) Zbl 0543.34057
Approximate and qualitative methods of the theory of functional- differential equations, Collect. sci. Works, Kiev 1983, 98-106 (1983).
Reviewer: D.Mishev
On oscillation of solutions of higher order forced functional differential inequalities. (English) Zbl 0543.34055
Reviewer: F.Neuman
Stationary regimes of the equation describing fluctuations of an insect population. (English. Russian original) Zbl 0542.92020
Sov. Phys., Dokl. 28, 935-936 (1983); translation from Dokl. Akad. Nauk SSSR 273, 328-330 (1983).
An oscillation criterion for \(n\)th order non-linear differential equations with functional arguments. (English) Zbl 0542.34056
Reviewer: B.H.Stephan
Identification for systems with time-delay via block-pulse functions. (Chinese. English summary) Zbl 0541.93011
Reviewer: J.Wu
Remarque sur une propriété asymptotique des solutions d’une équation différentielle à paramètre retardé. (French) Zbl 0541.34049
Reviewer: V.A.Velev
On the asymptotic behavior of oscillatory solutions of functional differential equations. (English) Zbl 0541.34045
Reviewer: B.H.Stephan
Entrainment in a nonlinear functional differential equation - applications. (English) Zbl 0541.34044
Contributions to nonlinear partial differential equations, Proc. int. Meet., Madrid 1981, Res. Notes Math. 89, 111-122 (1983).
Reviewer: G.Seifert
On some parabolic integro-differential equations: existence and asymptotics of solutions. (English) Zbl 0539.35074
Equadiff 82, Proc. int. Conf., Würzburg 1982, Lect. Notes Math. 1017, 161-167 (1983).
Reviewer: P.de Mottoni
Asymptotic integration of functional differential systems which are asymptotically autonomous. (English) Zbl 0539.34052
Equadiff 82, Proc. int. Conf., Würzburg 1982, Lect. Notes Math. 1017, 43-55 (1983).
Reviewer: S.O.Londen
Averaging in differential inclusions with delay. (English. Russian original) Zbl 0539.34050
Sov. Math. 27, No. 9, 47-50 (1983); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1983, No. 9(256), 42-49 (1983).
Reviewer: A.Halanay
Extension of Sturm’s theorem to apply to an equation with time-lag. (English. Russian original) Zbl 0538.34038
Differ. Equations 19, 1099-1105 (1983); translation from Differ. Uravn. 19, No. 9, 1475-1482 (1983).
Reviewer: D.Bobrowski
Averaging in some gyroscopic systems with time-lag. (English. Russian original) Zbl 0537.34071
Ukr. Math. J. 35, 212-215 (1983); translation from Ukr. Mat. Zh. 35, No. 2, 245-248 (1983).
Reviewer: M.M.Konstantinov
Effect of a small delay in almost-periodic linear systems of high order. (English. Russian original) Zbl 0537.34070
Ukr. Math. J. 35, 641-643 (1983); translation from Ukr. Mat. Zh. 35, No. 6, 740-742 (1983).
Reviewer: Z.Wang
Oscillation theorems for \(n\)th order nonlinear functional differential equations. (English) Zbl 0537.34067
Reviewer: F.Neuman
Bounds for the set of solutions of functional-differential equations. (English) Zbl 0537.34066
Reviewer: V.Sree Hari Rao
MSC:
34K99
Comparison theorems for second-order differential equations with deviating arguments. (English. Russian original) Zbl 0537.34065
Ukr. Math. J. 35, 540-543 (1983); translation from Ukr. Mat. Zh. 35, No. 5, 626-630 (1983).
Reviewer: Z.Wang
On the solutions of the equations of motion of a one-dimensional bag model with surface energy. (English) Zbl 0536.34052
Reviewer: J.M.Cushing
MSC:
34K99
Absolutely continuous solutions of some functional extremal equations of neutral type. (English) Zbl 0536.34051
Reviewer: J.M.Cushing
MSC:
34K99
On the periodic solutions of differential equations and differential inequalities with or without delay. (Italian. English summary) Zbl 0536.34049
Nonoscillation theorems for a class of perturbed disconjugate differential equations. (English) Zbl 0536.34048
The trade-off between mutual interference and time lags in predator-prey systems. (English) Zbl 0535.92024
Reviewer: O.Arino
Nonoscillation of higher order functional differential equations. (English) Zbl 0535.34052
Reviewer: M.Boudourides
Advanced differential equations with piecewise constant argument deviations. (English) Zbl 0534.34067
Necessary conditions for partial differential equations with delay to generate \(C_ 0\)-semigroups. (English) Zbl 0533.35082
Reviewer: J.Toland
On oscillation of solutions of nth-order delay differential equations. (English) Zbl 0533.34053
Reviewer: G.Derfel
Periodic solutions of \(u'(t)=-f(u(t-1)):\) Multiplicity results and small period solutions. (English) Zbl 0533.34051
Reviewer: S.Tersian
Forced oscillations in functional differential equations with deviating arguments. (English) Zbl 0532.34046
MSC:
34K99
Distributional and entire solutions of ordinary differential and functional differential equations. (English) Zbl 0532.34006
Reviewer: J.O.C.Ezeilo
Filtering for linear systems involving time delays in the noise process. (English) Zbl 0531.93059
Reviewer: A.Bagchi
Methods for constructing triangular norm. (English) Zbl 0531.34060
Reviewer: R.Tardiff
Liapunov-Razumikhin functions and an invariance principle for functional differential equations. (English) Zbl 0531.34058
Reviewer: H.Jeggle
A numerical-analytic method of investigating periodic solutions of certain differential-operational equations. (English. Russian original) Zbl 0531.34055
Differ. Equations 19, 409-414 (1983); translation from Differ. Uravn. 19, No. 4, 569-575 (1983).
Reviewer: St.Tersian
Periodic solutions of differential-difference systems of neutral type with impulse effect. (English) Zbl 0531.34054
Reviewer: S.G.Hristova
Asymptotic behaviour of the nonoscillating solutions of functional- differential equations of \(n\)-th order. (English) Zbl 0531.34053
Reviewer: R.S.Dahiya
Nonoscillation theorems for differential equations with general deviating arguments. (English) Zbl 0531.34052
Ordinary differential equations and operators, A Trib. to F. V. Atkinson, Proc. Symp., Dundee/Scotl. 1982, Lect. Notes Math. 1032, 224-239 (1983).
Reviewer: H.Jeggle
Differential inclusions with small time-lags. (English. Russian original) Zbl 0528.34064
Differ. Equations 19, 708-712 (1983); translation from Differ. Uravn. 19, No. 6, 971-976 (1983).
The degeneracy property in linear autonomous functional differential equations of the neutral type. (English) Zbl 0528.34061
On a Kamenev’s integral criterion for oscillation of linear differential equations of second order. (English) Zbl 0528.34035
About the behaviour at infinity of solutions of \(x'(t)=f(t-1,x(t-1))-f(t,x(t))\). (English) Zbl 0527.34066
On the asymptotic behavior of the nonoscillatory solutions of differential equations with deviating arguments. (English) Zbl 0527.34063
On some properties of the solutions of the third order nonlinear differential equations with delay. (English) Zbl 0527.34062
Estimation of delays and other parameters in nonlinear functional differential equations. (English) Zbl 0526.93015
Asymptotic behavior in functional differential equations with infinite delay. (English) Zbl 0526.34064
Equadiff 82, Proc. int. Conf., Würzburg 1982, Lect. Notes Math. 1017, 300-312 (1983).
Weak difference-functional inequalities and their application to the difference analogue of non-linear parabolic differential-functional equations. (English) Zbl 0526.34056
Periodic solutions of neutral functional differential equations. (English) Zbl 0525.34052
Equadiff 82, Proc. int. Conf., Würzburg 1982, Lect. Notes Math. 1017, 115-121 (1983).
Oscillatory properties of the first order differential inequalities with deviating argument. (English) Zbl 0525.34051
The mathematical model of the anti-viral immune response. (English) Zbl 0524.92002
Mathematical modeling in immunology and medicine, Proc. IFIP TC 7 Working Conf., Moscow 1982, 161-172 (1983).
Some generic properties of functional-differential equations of neutral type. (English) Zbl 0524.34068
Asymptotic behaviour of a class of nonoscillatory solutions of differential equations with deviating arguments. (English) Zbl 0523.34069
Uniform stability of almost periodic solutions of delay-differential equations. (English) Zbl 0523.34067
Equadiff 82, Proc. int. Conf., Würzburg 1982, Lect. Notes Math. 1017, 563-567 (1983).
Periodic solutions of functional differential equations. (English) Zbl 0523.34066
Equadiff 82, Proc. int. Conf., Würzburg 1982, Lect. Notes Math. 1017, 194-200 (1983).
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