On periodic solutions of second order functional differential equations.
Lomtatidze, A., Mukhigulashvili, S. (1995)
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Lomtatidze, A., Mukhigulashvili, S. (1995)
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Chang, S.H. (1985)
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J. Ligęza (1977)
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Stanisław Sędziwy (1972)
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G. J. Butler, H. I. Freedman (1979)
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Based on the fixed-point theorem in a cone and some analysis skill, a new sufficient condition is obtained for the existence of positive periodic solutions for a class of higher-order functional difference equations. An example is used to illustrate the applicability of the main result.
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Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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Kiguradze, I. (1997)
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