31 resultados para Numerical solutions of ODE’s


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2000 Mathematics Subject Classification: 26A33 (primary), 35S15 (secondary)

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2000 Mathematics Subject Classification: 26A33 (primary), 35S15

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Mathematics Subject Classi¯cation 2010: 26A33, 65D25, 65M06, 65Z05.

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MSC 2010: 44A35, 35L20, 35J05, 35J25

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MSC 2010: 44A35, 44A45, 44A40, 35K20, 35K05

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Sufficient conditions for the existence of bounded solutions of singularly perturbed impulsive differential equations are obtained. For this purpose integral manifolds are used.

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In this article on quasidifferential equation with non-fixed time of impulses we consider the continuous dependence of the solutions on the initial conditions as well as the mappings defined by these equations. We prove general theorems for quasidifferential equations from which follows corresponding results for differential equations, differential inclusion and equations with Hukuhara derivative.

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The existence of a nontrivial critical point is proved for a functional containing an area-type term. Techniques of nonsmooth critical point theory are applied.

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In this paper are examined some classes of linear and non-linear analytical systems of partial differential equations. Compatibility conditions are found and if they are satisfied, the solutions are given as functional series in a neighborhood of a given point (x = 0).

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In this paper we present a spectral criterion for existence of mean-periodic solutions of retarded functional differential equations with a time-independent main part.

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Mathematics Subject Class.: 33C10,33D60,26D15,33D05,33D15,33D90

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2000 Mathematics Subject Classification: 26A33, 33C60, 44A15, 35K55

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Mathematics Subject Classification: 45G10, 45M99, 47H09

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Mathematics Subject Classification: 26A33, 34A25, 45D05, 45E10

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Sufficient conditions for the existence of Lp(k)-solutions of linear nonhomogeneous impulsive differential equations with unbounded linear operator are found. An example of the theory of the linear nonhomogeneous partial impulsive differential equations of parabolic type is given.