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Displaying 881 – 900 of 1670

On the exact WKB analysis of microdifferential operators of WKB type

Takashi Aoki, Takahiro Kawai, Tatsuya Koike, Yoshitsugu Takei (2004)

Annales de l’institut Fourier

We first introduce the notion of microdifferential operators of WKB type and then develop their exact WKB analysis using microlocal analysis; a recursive way of constructing a WKB solution for such an operator is given through the symbol calculus of microdifferential operators, and their local structure near their turning points is discussed by a Weierstrass-type division theorem for such operators. A detailed study of the Berk-Book equation is given in Appendix.

On the exceptional case in systems of non-linear differential equations

Rahmi Ibrahim Ibrahim Abdel Karim (1971)

Archivum Mathematicum

On the existence and boundedness of solutions of a nonlinear delay differential system

Ján Futák (1978)

Archivum Mathematicum

On the existence and the stability of solutions for higher-order semilinear Dirichlet problems

Marek Galewski, M. Płócienniczak (2007)

Czechoslovak Mathematical Journal

We investigate the existence and stability of solutions for higher-order two-point boundary value problems in case the differential operator is not necessarily positive definite, i.e. with superlinear nonlinearities. We write an abstract realization of the Dirichlet problem and provide abstract existence and stability results which are further applied to concrete problems.

On the existence and uniqueness of periodic solutions for difference equations of second order

Zdzisław Denkowski (1973)

Annales Polonici Mathematici

On the Existence and Uniqueness of Periodic Solutions of Differential Delay Equations.

Sergio Invernizzi, Fabio Zanolin (1978)

Mathematische Zeitschrift

On the existence and uniqueness of solutions for an incomplete second-order abstract Cauchy problem

F. Periago, B. Straub (2003)

Studia Mathematica

We prove existence and uniqueness of classical solutions for an incomplete second-order abstract Cauchy problem associated with operators which have polynomially bounded resolvent. Some examples of differential operators to which our abstract result applies are also included.

On the existence of a measure unbounded exponential spectral characteristic set of a linear system with a small parameter at the derivative.

Izobov, N., Krasovskij, S. (1998)

Memoirs on Differential Equations and Mathematical Physics

Currently displaying 881 – 900 of 1670

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Displaying 881 – 900 of 1670

On the exact WKB analysis of microdifferential operators of WKB type

On the exceptional case in systems of non-linear differential equations

On the existence and boundedness of solutions of a nonlinear delay differential system

On the existence and the stability of solutions for higher-order semilinear Dirichlet problems

On the existence and uniqueness of periodic solutions for difference equations of second order

On the Existence and Uniqueness of Periodic Solutions of Differential Delay Equations.

On the existence and uniqueness of solutions for an incomplete second-order abstract Cauchy problem

On the existence and uniqueness of solutions of a multipoint boundary value problem

On the existence and uniqueness of solutions of systems of differential equations with a deviated argument

On the existence and uniqueness of solutions to boundary value problems on time scales.

On the existence of a bounded solution of a non-linear differential equation

On the existence of a component-wise positive radially symmetric solution for a superlinear system.

On the existence of a measure unbounded exponential spectral characteristic set of a linear system with a small parameter at the derivative.

On the existence of a periodic solution of a nonlinear ordinary differential equation.

On the existence of a solution for nonlinear operator equations in Fréchet spaces

On the Existence of a Solution of a Singular Boundary Value Problem

On the existence of a solution of a two-point boundary value problem in a cylindrical floating zone.

On the existence of a solution of a vector periodic boundary value problem

On the existence of a weak solution of a half-cell model for PEM fuel cells.

On the existence of almost periodic Lyapunov functions for impulsive differential equations.

Currently displaying 881 – 900 of 1670