Electron. J. Diff. Equ., Vol. 2012 (2012), No. 75, pp. 1-17.

Reducibility of systems and existence of solutions for almost periodic differential equations

Jihed Ben Slimene, Joel Blot

Abstract:
We establish the reducibility of linear systems of almost periodic differential equations into upper triangular systems of a. p. differential equations. This is done while the number of independent a. p. solutions is conserved. We prove existence and uniqueness of a. p. solutions of a nonlinear system with an a. p. linear part. Also we prove the continuous dependence of a. p. solutions of a nonlinear system with respect to an a. p. control term.

Submitted January 25, 2012. Published May 14, 2012.
Math Subject Classifications: 34A30, 34C27, 34C15,34C41, 93C15.
Key Words: Almost-periodic solutions; reducibility; fixed-point theorem.

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Jihed Ben Slimene
Laboratoire SAMM, Université Paris 1 Panthéon-Sorbonne
Centre P.M.F., 90 rue de Tolbiac
75634 Paris Cedex 13, France
email: jihed.benslimene@laposte.net
Joël Blot
Laboratoire SAMM, Université Paris 1 Panthéon-Sorbonne
Centre P.M.F., 90 rue de Tolbiac
75634 Paris Cedex 13, France
email: joel.blot@univ-paris1.fr

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