On the periodic solution of a quasi-linear non-autonomous system
Otto Vejvoda (1961)
Czechoslovak Mathematical Journal
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Otto Vejvoda (1961)
Czechoslovak Mathematical Journal
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Irena Rachůnková (1989)
Mathematica Slovaca
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Hana Lovicarová (1969)
Czechoslovak Mathematical Journal
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Alexander Fischer (2004)
Applications of Mathematics
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The present paper does not introduce a new approximation but it modifies a certain known method. This method for obtaining a periodic approximation of a periodic solution of a linear nonhomogeneous differential equation with periodic coefficients and periodic right-hand side is used in technical practice. However, the conditions ensuring the existence of a periodic solution may be violated and therefore the purpose of this paper is to modify the method in order that these conditions...