Two periodic solutions of neutral difference equations modelling physiological processes.
Wu, Jun, Liu, Yicheng (2006)
Discrete Dynamics in Nature and Society
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Wu, Jun, Liu, Yicheng (2006)
Discrete Dynamics in Nature and Society
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J. Ligęza (1977)
Annales Polonici Mathematici
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G. J. Butler (1974)
Annales Polonici Mathematici
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Stanisław Sędziwy (1972)
Annales Polonici Mathematici
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G. J. Butler, H. I. Freedman (1979)
Annales Polonici Mathematici
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Xin-Ge Liu, Mei-Lan Tang (2014)
Applications of Mathematics
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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.
Makay, Géza (2000)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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Anna A. Kwiecińska (1996)
Annales Polonici Mathematici
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A proof of the C⁰-closing lemma for noninvertible discrete dynamical systems and its extension to the noncompact case are presented.
Bahman Mehri (1977)
Archivum Mathematicum
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Radosław Pietkun (2010)
Bulletin of the Polish Academy of Sciences. Mathematics
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The existence of a continuous periodic and almost periodic solutions of the nonlinear integral inclusion is established by means of the generalized Schauder fixed point theorem.
Ezzinbi, Khalil, Jazar, Mustapha (2004)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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