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MATHEMATICA BOHEMICA, Vol. 129, No. 1, pp. 43-70 (2004)
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Almost periodic solutions with a prescribed spectrum of systems of linear and quasilinear differential equations with almost periodic coefficients and constant time lag

(Fourier transform approach)

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Alexandr Fischer

* Alexandr Fischer*, Czech Technical University, Faculty of Mechanical Engineering, Dept. of Technical Mathematics, Karlovo nam. 13, 121 35 Praha 2, Czech Republic

**Abstract:** This paper is a continuation of my previous paper in Mathematica Bohemica and solves the same problem but by means of another method. It deals with almost periodic solutions of a certain type of almost periodic systems of differential equations.

**Keywords:** almost periodic function, Fourier coefficient, Fourier exponent, spectrum of almost periodic function, almost periodic system of differential equations, formal almost periodic solution, distance of two spectra, time lag

**Classification (MSC2000):** 42A75, 43A60

**Full text of the article:**

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